30013120031431 has 16 divisors (see below), whose sum is σ = 30786386350720. Its totient is φ = 29248950597120.

The previous prime is 30013120031417. The next prime is 30013120031443. The reversal of 30013120031431 is 13413002131003.

It is a cyclic number.

It is not a de Polignac number, because 30013120031431 - 2²³ = 30013111642823 is a prime.

It is a super-2 number, since 2×30013120031431² (a number of 28 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 (30013120031831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168948751 + ... + 169126303.

It is an arithmetic number, because the mean of its divisors is an integer number (1924149146920).

Almost surely, 2^{30013120031431} is an apocalyptic number.

30013120031431 is a deficient number, since it is larger than the sum of its proper divisors (773266319289).

30013120031431 is a wasteful number, since it uses less digits than its factorization.

30013120031431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203146.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 30013120031431 its reverse (13413002131003), we get a palindrome (43426122162434).

The spelling of 30013120031431 in words is "thirty trillion, thirteen billion, one hundred twenty million, thirty-one thousand, four hundred thirty-one".