30131233131 has 8 divisors (see below), whose sum is σ = 41560321680. Its totient is φ = 19394816672.

The previous prime is 30131233123. The next prime is 30131233159. The reversal of 30131233131 is 13133213103.

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 30131233131 - 2³ = 30131233123 is a prime.

It is a super-2 number, since 2×30131233131² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30131233098 and 30131233107.

It is not an unprimeable number, because it can be changed into a prime (30131233031) 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, 173167920 + ... + 173168093.

It is an arithmetic number, because the mean of its divisors is an integer number (5195040210).

Almost surely, 2^30131233131 is an apocalyptic number.

30131233131 is a deficient number, since it is larger than the sum of its proper divisors (11429088549).

30131233131 is a wasteful number, since it uses less digits than its factorization.

30131233131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346336045.

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 30131233131 its reverse (13133213103), we get a palindrome (43264446234).

The spelling of 30131233131 in words is "thirty billion, one hundred thirty-one million, two hundred thirty-three thousand, one hundred thirty-one".