131012211002 has 4 divisors (see below), whose sum is σ = 196518316506. Its totient is φ = 65506105500.

The previous prime is 131012210983. The next prime is 131012211049. The reversal of 131012211002 is 200112210131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 92191784161 + 38820426841 = 303631^2 + 197029^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32753052749 + ... + 32753052752.

Almost surely, 2^131012211002 is an apocalyptic number.

131012211002 is a deficient number, since it is larger than the sum of its proper divisors (65506105504).

131012211002 is an equidigital number, since it uses as much as digits as its factorization.

131012211002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65506105503.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 131012211002 its reverse (200112210131), we get a palindrome (331124421133).

The spelling of 131012211002 in words is "one hundred thirty-one billion, twelve million, two hundred eleven thousand, two".