30312320003121 has 32 divisors (see below), whose sum is σ = 44139337482240. Its totient is φ = 18390622824000.

The previous prime is 30312320003117. The next prime is 30312320003123. The reversal of 30312320003121 is 12130002321303.

It is not a de Polignac number, because 30312320003121 - 2² = 30312320003117 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30312320003123) 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, 189183840 + ... + 189343998.

It is an arithmetic number, because the mean of its divisors is an integer number (1379354296320).

Almost surely, 2^{30312320003121} is an apocalyptic number.

It is an amenable number.

30312320003121 is a deficient number, since it is larger than the sum of its proper divisors (13827017479119).

30312320003121 is a wasteful number, since it uses less digits than its factorization.

30312320003121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228597.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 30312320003121 its reverse (12130002321303), we get a palindrome (42442322324424).

The spelling of 30312320003121 in words is "thirty trillion, three hundred twelve billion, three hundred twenty million, three thousand, one hundred twenty-one".