1231012133132 has 24 divisors (see below), whose sum is σ = 2155971945456. Its totient is φ = 615020349888.

The previous prime is 1231012133119. The next prime is 1231012133147. The reversal of 1231012133132 is 2313312101321.

It is a junction number, because it is equal to n+sod(n) for n = 1231012133098 and 1231012133107.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27301118 + ... + 27346170.

It is an arithmetic number, because the mean of its divisors is an integer number (89832164394).

Almost surely, 2^{1231012133132} is an apocalyptic number.

It is an amenable number.

1231012133132 is a deficient number, since it is larger than the sum of its proper divisors (924959812324).

1231012133132 is a wasteful number, since it uses less digits than its factorization.

1231012133132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50297 (or 50295 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 1231012133132 its reverse (2313312101321), we get a palindrome (3544324234453).

The spelling of 1231012133132 in words is "one trillion, two hundred thirty-one billion, twelve million, one hundred thirty-three thousand, one hundred thirty-two".