121231023300 has 126 divisors (see below), whose sum is σ = 394426785018. Its totient is φ = 32328253440.

The previous prime is 121231023283. The next prime is 121231023367. The reversal of 121231023300 is 3320132121.

121231023300 is a `hidden beast` number, since 1 + 21 + 2 + 310 + 2 + 330 + 0 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 6631170624 + 114599852676 = 81432^2 + 338526^2 .

It is a super-2 number, since 2×121231023300² (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 an unprimeable number.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 758589 + ... + 904388.

Almost surely, 2^121231023300 is an apocalyptic number.

121231023300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121231023300 is an abundant number, since it is smaller than the sum of its proper divisors (273195761718).

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

121231023300 is a wasteful number, since it uses less digits than its factorization.

121231023300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1663009 (or 1662987 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 121231023300 its reverse (3320132121), we get a palindrome (124551155421).

The spelling of 121231023300 in words is "one hundred twenty-one billion, two hundred thirty-one million, twenty-three thousand, three hundred".