121023211230 has 24 divisors (see below), whose sum is σ = 314660349432. Its totient is φ = 32272856304.

The previous prime is 121023211229. The next prime is 121023211277. The reversal of 121023211230 is 32112320121.

121023211230 is a `hidden beast` number, since 12 + 102 + 321 + 1 + 230 = 666.

It is a super-2 number, since 2×121023211230² (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 an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 672351084 + ... + 672351263.

It is an arithmetic number, because the mean of its divisors is an integer number (13110847893).

Almost surely, 2^121023211230 is an apocalyptic number.

121023211230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121023211230 is an abundant number, since it is smaller than the sum of its proper divisors (193637138202).

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

121023211230 is a wasteful number, since it uses less digits than its factorization.

121023211230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1344702360 (or 1344702357 counting only the distinct ones).

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

Adding to 121023211230 its reverse (32112320121), we get a palindrome (153135531351).

The spelling of 121023211230 in words is "one hundred twenty-one billion, twenty-three million, two hundred eleven thousand, two hundred thirty".