30031201231 has 4 divisors (see below), whose sum is σ = 30033903600. Its totient is φ = 30028498864.

The previous prime is 30031201229. The next prime is 30031201289. The reversal of 30031201231 is 13210213003.

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 30031201231 - 2¹ = 30031201229 is a prime.

It is a super-2 number, since 2×30031201231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30031201531) 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, 1334446 + ... + 1356763.

It is an arithmetic number, because the mean of its divisors is an integer number (7508475900).

Almost surely, 2^30031201231 is an apocalyptic number.

30031201231 is a deficient number, since it is larger than the sum of its proper divisors (2702369).

30031201231 is a wasteful number, since it uses less digits than its factorization.

30031201231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2702368.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 30031201231 its reverse (13210213003), we get a palindrome (43241414234).

The spelling of 30031201231 in words is "thirty billion, thirty-one million, two hundred one thousand, two hundred thirty-one".