131231202101 has 8 divisors (see below), whose sum is σ = 133811546400. Its totient is φ = 128654720272.

The previous prime is 131231202077. The next prime is 131231202169. The reversal of 131231202101 is 101202132131.

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 131231202101 - 2¹⁰ = 131231201077 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131231202101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131231202191) 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, 896951 + ... + 1032948.

It is an arithmetic number, because the mean of its divisors is an integer number (16726443300).

Almost surely, 2^131231202101 is an apocalyptic number.

It is an amenable number.

131231202101 is a deficient number, since it is larger than the sum of its proper divisors (2580344299).

131231202101 is a wasteful number, since it uses less digits than its factorization.

131231202101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1931235.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 131231202101 its reverse (101202132131), we get a palindrome (232433334232).

The spelling of 131231202101 in words is "one hundred thirty-one billion, two hundred thirty-one million, two hundred two thousand, one hundred one".