121500230930 has 16 divisors (see below), whose sum is σ = 235523524824. Its totient is φ = 44861623680.

The previous prime is 121500230923. The next prime is 121500230933. The reversal of 121500230930 is 39032005121.

It can be written as a sum of positive squares in 4 ways, for example, as 83290537201 + 38209693729 = 288601^2 + 195473^2 .

It is a super-2 number, since 2×121500230930² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 121500230930.

It is not an unprimeable number, because it can be changed into a prime (121500230933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 467308451 + ... + 467308710.

Almost surely, 2^121500230930 is an apocalyptic number.

121500230930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121500230930 is a deficient number, since it is larger than the sum of its proper divisors (114023293894).

121500230930 is a wasteful number, since it uses less digits than its factorization.

121500230930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934617181.

The product of its (nonzero) digits is 1620, while the sum is 26.

The spelling of 121500230930 in words is "one hundred twenty-one billion, five hundred million, two hundred thirty thousand, nine hundred thirty".