121023212310 has 384 divisors, whose sum is σ = 433911389184. Its totient is φ = 22585236480.

The previous prime is 121023212263. The next prime is 121023212311. The reversal of 121023212310 is 13212320121.

121023212310 is a `hidden beast` number, since 12 + 102 + 321 + 231 + 0 = 666.

121023212310 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×121023212310² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121023212311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 3315177 + ... + 3351483.

It is an arithmetic number, because the mean of its divisors is an integer number (1129977576).

Almost surely, 2^121023212310 is an apocalyptic number.

121023212310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 121023212310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216955694592).

121023212310 is an abundant number, since it is smaller than the sum of its proper divisors (312888176874).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121023212310 is a wasteful number, since it uses less digits than its factorization.

121023212310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36388 (or 36385 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 121023212310 its reverse (13212320121), we get a palindrome (134235532431).

It can be divided in two parts, 121023 and 212310, that added together give a palindrome (333333).

The spelling of 121023212310 in words is "one hundred twenty-one billion, twenty-three million, two hundred twelve thousand, three hundred ten".