101320212131 has 4 divisors (see below), whose sum is σ = 101321319000. Its totient is φ = 101319105264.

The previous prime is 101320212113. The next prime is 101320212137. The reversal of 101320212131 is 131212023101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131212023101 = 1019 ⋅128765479.

It is a cyclic number.

It is not a de Polignac number, because 101320212131 - 2²⁶ = 101253103267 is a prime.

It is a super-2 number, since 2×101320212131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101320212137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 402386 + ... + 603783.

It is an arithmetic number, because the mean of its divisors is an integer number (25330329750).

Almost surely, 2^101320212131 is an apocalyptic number.

101320212131 is a deficient number, since it is larger than the sum of its proper divisors (1106869).

101320212131 is a wasteful number, since it uses less digits than its factorization.

101320212131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106868.

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

Adding to 101320212131 its reverse (131212023101), we get a palindrome (232532235232).

The spelling of 101320212131 in words is "one hundred one billion, three hundred twenty million, two hundred twelve thousand, one hundred thirty-one".