1231442113031 has 8 divisors (see below), whose sum is σ = 1371898375680. Its totient is φ = 1097518699872.

The previous prime is 1231442113009. The next prime is 1231442113073. The reversal of 1231442113031 is 1303112441321.

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 1231442113031 - 2¹⁸ = 1231441850887 is a prime.

It is a super-2 number, since 2×1231442113031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231442113091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1633211975 + ... + 1633212728.

It is an arithmetic number, because the mean of its divisors is an integer number (171487296960).

Almost surely, 2^{1231442113031} is an apocalyptic number.

1231442113031 is a deficient number, since it is larger than the sum of its proper divisors (140456262649).

1231442113031 is a wasteful number, since it uses less digits than its factorization.

1231442113031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3266424745.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 1231442113031 its reverse (1303112441321), we get a palindrome (2534554554352).

The spelling of 1231442113031 in words is "one trillion, two hundred thirty-one billion, four hundred forty-two million, one hundred thirteen thousand, thirty-one".