30531041013 has 32 divisors (see below), whose sum is σ = 47409777792. Its totient is φ = 17415171840.

The previous prime is 30531041011. The next prime is 30531041029. The reversal of 30531041013 is 31014013503.

It is not a de Polignac number, because 30531041013 - 2¹ = 30531041011 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30531041011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 157006 + ... + 292767.

It is an arithmetic number, because the mean of its divisors is an integer number (1481555556).

Almost surely, 2^30531041013 is an apocalyptic number.

30531041013 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

30531041013 is a deficient number, since it is larger than the sum of its proper divisors (16878736779).

30531041013 is a wasteful number, since it uses less digits than its factorization.

30531041013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449826 (or 449804 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

Adding to 30531041013 its reverse (31014013503), we get a palindrome (61545054516).

The spelling of 30531041013 in words is "thirty billion, five hundred thirty-one million, forty-one thousand, thirteen".