30013431321123 has 16 divisors (see below), whose sum is σ = 44467541437440. Its totient is φ = 20007514781352.

The previous prime is 30013431321091. The next prime is 30013431321131. The reversal of 30013431321123 is 32112313431003.

30013431321123 is a `hidden beast` number, since 3 + 0 + 0 + 13 + 431 + 3 + 211 + 2 + 3 = 666.

It is not a de Polignac number, because 30013431321123 - 2⁵ = 30013431321091 is a prime.

It is a super-2 number, since 2×30013431321123² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (30013431321143) 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, 39601911 + ... + 40352672.

It is an arithmetic number, because the mean of its divisors is an integer number (2779221339840).

Almost surely, 2^{30013431321123} is an apocalyptic number.

30013431321123 is a deficient number, since it is larger than the sum of its proper divisors (14454110116317).

30013431321123 is a wasteful number, since it uses less digits than its factorization.

30013431321123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79968495 (or 79968489 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 30013431321123 its reverse (32112313431003), we get a palindrome (62125744752126).

The spelling of 30013431321123 in words is "thirty trillion, thirteen billion, four hundred thirty-one million, three hundred twenty-one thousand, one hundred twenty-three".