131312310221202 has 16 divisors (see below), whose sum is σ = 286499585937312. Its totient is φ = 39791609157920.

The previous prime is 131312310221153. The next prime is 131312310221233. The reversal of 131312310221202 is 202122013213131.

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, 994790228883 + ... + 994790229014.

It is an arithmetic number, because the mean of its divisors is an integer number (17906224121082).

Almost surely, 2^{131312310221202} is an apocalyptic number.

131312310221202 is an abundant number, since it is smaller than the sum of its proper divisors (155187275716110).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131312310221202 is a wasteful number, since it uses less digits than its factorization.

131312310221202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1989580457913.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 131312310221202 its reverse (202122013213131), we get a palindrome (333434323434333).

The spelling of 131312310221202 in words is "one hundred thirty-one trillion, three hundred twelve billion, three hundred ten million, two hundred twenty-one thousand, two hundred two".