121401123030 has 128 divisors (see below), whose sum is σ = 355863974400. Its totient is φ = 29205820800.

The previous prime is 121401123007. The next prime is 121401123049. The reversal of 121401123030 is 30321104121.

121401123030 is a `hidden beast` number, since 1 + 2 + 1 + 401 + 1 + 230 + 30 = 666.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 121401122994 and 121401123012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 233056 + ... + 545084.

It is an arithmetic number, because the mean of its divisors is an integer number (2780187300).

Almost surely, 2^121401123030 is an apocalyptic number.

121401123030 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 121401123030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177931987200).

121401123030 is an abundant number, since it is smaller than the sum of its proper divisors (234462851370).

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

121401123030 is a wasteful number, since it uses less digits than its factorization.

121401123030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312187 (or 312181 counting only the distinct ones).

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

Adding to 121401123030 its reverse (30321104121), we get a palindrome (151722227151).

The spelling of 121401123030 in words is "one hundred twenty-one billion, four hundred one million, one hundred twenty-three thousand, thirty".