30311120032031 has 16 divisors (see below), whose sum is σ = 31988947161600. Its totient is φ = 28641627216000.

The previous prime is 30311120031991. The next prime is 30311120032051. The reversal of 30311120032031 is 13023002111303.

It is not a de Polignac number, because 30311120032031 - 2³⁰ = 30310046290207 is a prime.

It is a super-2 number, since 2×30311120032031² (a number of 28 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 = 30311120031994 and 30311120032012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30311120032051) 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, 11866490 + ... + 14192808.

It is an arithmetic number, because the mean of its divisors is an integer number (1999309197600).

Almost surely, 2^{30311120032031} is an apocalyptic number.

30311120032031 is a deficient number, since it is larger than the sum of its proper divisors (1677827129569).

30311120032031 is a wasteful number, since it uses less digits than its factorization.

30311120032031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2328110.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 30311120032031 its reverse (13023002111303), we get a palindrome (43334122143334).

The spelling of 30311120032031 in words is "thirty trillion, three hundred eleven billion, one hundred twenty million, thirty-two thousand, thirty-one".