1231332130031 has 8 divisors (see below), whose sum is σ = 1249736150400. Its totient is φ = 1212928872408.

The previous prime is 1231332130027. The next prime is 1231332130043. The reversal of 1231332130031 is 1300312331321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1231332130031 - 2² = 1231332130027 is a prime.

It is a super-2 number, since 2×1231332130031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1231332129979 and 1231332130006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231334130031) 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, 3629780 + ... + 3954486.

It is an arithmetic number, because the mean of its divisors is an integer number (156217018800).

Almost surely, 2^{1231332130031} is an apocalyptic number.

1231332130031 is a deficient number, since it is larger than the sum of its proper divisors (18404020369).

1231332130031 is an equidigital number, since it uses as much as digits as its factorization.

1231332130031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381373.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 1231332130031 its reverse (1300312331321), we get a palindrome (2531644461352).

The spelling of 1231332130031 in words is "one trillion, two hundred thirty-one billion, three hundred thirty-two million, one hundred thirty thousand, thirty-one".