213103120131 has 48 divisors (see below), whose sum is σ = 347132553600. Its totient is φ = 129110865840.

The previous prime is 213103120123. The next prime is 213103120147. The reversal of 213103120131 is 131021301312.

213103120131 is a `hidden beast` number, since 213 + 10 + 312 + 0 + 131 = 666.

It is not a de Polignac number, because 213103120131 - 2³ = 213103120123 is a prime.

It is a super-2 number, since 2×213103120131² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (213103120121) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11945040 + ... + 11962866.

It is an arithmetic number, because the mean of its divisors is an integer number (7231928200).

Almost surely, 2^213103120131 is an apocalyptic number.

213103120131 is a deficient number, since it is larger than the sum of its proper divisors (134029433469).

213103120131 is a wasteful number, since it uses less digits than its factorization.

213103120131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21517 (or 21500 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 213103120131 its reverse (131021301312), we get a palindrome (344124421443).

The spelling of 213103120131 in words is "two hundred thirteen billion, one hundred three million, one hundred twenty thousand, one hundred thirty-one".