131201144002 has 16 divisors (see below), whose sum is σ = 196997867640. Its totient is φ = 65535224832.

The previous prime is 131201143979. The next prime is 131201144003. The reversal of 131201144002 is 200441102131.

It can be written as a sum of positive squares in 4 ways, for example, as 72220650121 + 58980493881 = 268739^2 + 242859^2 .

It is not an unprimeable number, because it can be changed into a prime (131201144003) 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, 9345124 + ... + 9359152.

Almost surely, 2^131201144002 is an apocalyptic number.

131201144002 is a deficient number, since it is larger than the sum of its proper divisors (65796723638).

131201144002 is a wasteful number, since it uses less digits than its factorization.

131201144002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18357.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 131201144002 its reverse (200441102131), we get a palindrome (331642246133).

The spelling of 131201144002 in words is "one hundred thirty-one billion, two hundred one million, one hundred forty-four thousand, two".