30243112431 has 16 divisors (see below), whose sum is σ = 46087171584. Its totient is φ = 17280867744.

The previous prime is 30243112399. The next prime is 30243112451. The reversal of 30243112431 is 13421134203.

It is a happy number.

It is not a de Polignac number, because 30243112431 - 2⁵ = 30243112399 is a prime.

It is a super-2 number, since 2×30243112431² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30243112451) 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, 772966 + ... + 811148.

It is an arithmetic number, because the mean of its divisors is an integer number (2880448224).

Almost surely, 2^30243112431 is an apocalyptic number.

30243112431 is a deficient number, since it is larger than the sum of its proper divisors (15844059153).

30243112431 is a wasteful number, since it uses less digits than its factorization.

30243112431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75910.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 30243112431 its reverse (13421134203), we get a palindrome (43664246634).

The spelling of 30243112431 in words is "thirty billion, two hundred forty-three million, one hundred twelve thousand, four hundred thirty-one".