1231233300040 has 16 divisors (see below), whose sum is σ = 2770274925180. Its totient is φ = 492493320000.

The previous prime is 1231233300023. The next prime is 1231233300079. The reversal of 1231233300040 is 400033321321.

It can be written as a sum of positive squares in 2 ways, for example, as 1216948747716 + 14284552324 = 1103154^2 + 119518^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1231233299984 and 1231233300020.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15390416211 + ... + 15390416290.

Almost surely, 2^{1231233300040} is an apocalyptic number.

1231233300040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1231233300040 is an abundant number, since it is smaller than the sum of its proper divisors (1539041625140).

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

1231233300040 is a wasteful number, since it uses less digits than its factorization.

1231233300040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30780832512 (or 30780832508 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 1231233300040 its reverse (400033321321), we get a palindrome (1631266621361).

The spelling of 1231233300040 in words is "one trillion, two hundred thirty-one billion, two hundred thirty-three million, three hundred thousand, forty".