30523421531 has 16 divisors (see below), whose sum is σ = 31673241600. Its totient is φ = 29384264160.

The previous prime is 30523421521. The next prime is 30523421573. The reversal of 30523421531 is 13512432503.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 30523421531 - 2¹⁴ = 30523405147 is a prime.

It is a super-2 number, since 2×30523421531² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30523421494 and 30523421503.

It is not an unprimeable number, because it can be changed into a prime (30523421521) 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, 6707645 + ... + 6712193.

It is an arithmetic number, because the mean of its divisors is an integer number (1979577600).

Almost surely, 2^30523421531 is an apocalyptic number.

30523421531 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

30523421531 is a deficient number, since it is larger than the sum of its proper divisors (1149820069).

30523421531 is a wasteful number, since it uses less digits than its factorization.

30523421531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5666.

The product of its (nonzero) digits is 10800, while the sum is 29.

The spelling of 30523421531 in words is "thirty billion, five hundred twenty-three million, four hundred twenty-one thousand, five hundred thirty-one".