1031212321232 has 20 divisors (see below), whose sum is σ = 1998214357956. Its totient is φ = 515544099840.

The previous prime is 1031212321229. The next prime is 1031212321333. The reversal of 1031212321232 is 2321232121301.

It can be written as a sum of positive squares in 2 ways, for example, as 883983561616 + 147228759616 = 940204^2 + 383704^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1031212321198 and 1031212321207.

It is a congruent number.

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, 3741569 + ... + 4007712.

Almost surely, 2^{1031212321232} is an apocalyptic number.

It is an amenable number.

1031212321232 is a deficient number, since it is larger than the sum of its proper divisors (967002036724).

1031212321232 is an equidigital number, since it uses as much as digits as its factorization.

1031212321232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7757606 (or 7757600 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1031212321232 its reverse (2321232121301), we get a palindrome (3352444442533).

The spelling of 1031212321232 in words is "one trillion, thirty-one billion, two hundred twelve million, three hundred twenty-one thousand, two hundred thirty-two".