30213210131 has 4 divisors (see below), whose sum is σ = 32537303232. Its totient is φ = 27889117032.

The previous prime is 30213210127. The next prime is 30213210161. The reversal of 30213210131 is 13101231203.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30213210131 - 2² = 30213210127 is a prime.

It is a super-2 number, since 2×30213210131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30213210161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1162046531 + ... + 1162046556.

It is an arithmetic number, because the mean of its divisors is an integer number (8134325808).

Almost surely, 2^30213210131 is an apocalyptic number.

30213210131 is a deficient number, since it is larger than the sum of its proper divisors (2324093101).

30213210131 is a wasteful number, since it uses less digits than its factorization.

30213210131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2324093100.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 30213210131 its reverse (13101231203), we get a palindrome (43314441334).

The spelling of 30213210131 in words is "thirty billion, two hundred thirteen million, two hundred ten thousand, one hundred thirty-one".