30031120023 has 16 divisors (see below), whose sum is σ = 40722738816. Its totient is φ = 19680524640.

The previous prime is 30031120003. The next prime is 30031120037. The reversal of 30031120023 is 32002113003.

It is not a de Polignac number, because 30031120023 - 2²¹ = 30029022871 is a prime.

It is a super-3 number, since 3×30031120023³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30031119984 and 30031120011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30031120003) 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, 255840 + ... + 354282.

It is an arithmetic number, because the mean of its divisors is an integer number (2545171176).

Almost surely, 2^30031120023 is an apocalyptic number.

30031120023 is a deficient number, since it is larger than the sum of its proper divisors (10691618793).

30031120023 is a wasteful number, since it uses less digits than its factorization.

30031120023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100174.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 30031120023 its reverse (32002113003), we get a palindrome (62033233026).

The spelling of 30031120023 in words is "thirty billion, thirty-one million, one hundred twenty thousand, twenty-three".