30561632231 has 4 divisors (see below), whose sum is σ = 32912527032. Its totient is φ = 28210737432.

The previous prime is 30561632209. The next prime is 30561632243. The reversal of 30561632231 is 13223616503.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13223616503 = 12107 ⋅1092229.

It is a cyclic number.

It is not a de Polignac number, because 30561632231 - 2¹⁰ = 30561631207 is a prime.

It is a super-2 number, since 2×30561632231² (a number of 22 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 (30561632201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1175447381 + ... + 1175447406.

It is an arithmetic number, because the mean of its divisors is an integer number (8228131758).

Almost surely, 2^30561632231 is an apocalyptic number.

30561632231 is a deficient number, since it is larger than the sum of its proper divisors (2350894801).

30561632231 is a wasteful number, since it uses less digits than its factorization.

30561632231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2350894800.

The product of its (nonzero) digits is 19440, while the sum is 32.

The spelling of 30561632231 in words is "thirty billion, five hundred sixty-one million, six hundred thirty-two thousand, two hundred thirty-one".