131021131234 has 16 divisors (see below), whose sum is σ = 224684460288. Its totient is φ = 56132711712.

The previous prime is 131021131211. The next prime is 131021131253. The reversal of 131021131234 is 432131120131.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1557699 + ... + 1639654.

It is an arithmetic number, because the mean of its divisors is an integer number (14042778768).

Almost surely, 2^131021131234 is an apocalyptic number.

131021131234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

131021131234 is a deficient number, since it is larger than the sum of its proper divisors (93663329054).

131021131234 is a wasteful number, since it uses less digits than its factorization.

131021131234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3200289.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 131021131234 its reverse (432131120131), we get a palindrome (563152251365).

The spelling of 131021131234 in words is "one hundred thirty-one billion, twenty-one million, one hundred thirty-one thousand, two hundred thirty-four".