30311123230120 has 64 divisors (see below), whose sum is σ = 70343886946320. Its totient is φ = 11746131462144.

The previous prime is 30311123230117. The next prime is 30311123230133. The reversal of 30311123230120 is 2103232111303.

It can be written as a sum of positive squares in 8 ways, for example, as 24869829885156 + 5441293344964 = 4986966^2 + 2332658^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30311123230091 and 30311123230100.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43604707 + ... + 44294386.

Almost surely, 2^{30311123230120} is an apocalyptic number.

It is an amenable number.

30311123230120 is an abundant number, since it is smaller than the sum of its proper divisors (40032763716200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30311123230120 is a wasteful number, since it uses less digits than its factorization.

30311123230120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87899374 (or 87899370 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 30311123230120 its reverse (2103232111303), we get a palindrome (32414355341423).

The spelling of 30311123230120 in words is "thirty trillion, three hundred eleven billion, one hundred twenty-three million, two hundred thirty thousand, one hundred twenty".