30311123202312 has 64 divisors (see below), whose sum is σ = 75884885424000. Its totient is φ = 10089435792384.

The previous prime is 30311123202293. The next prime is 30311123202317. The reversal of 30311123202312 is 21320232111303.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (30311123202317) 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, 97713568 + ... + 98023280.

It is an arithmetic number, because the mean of its divisors is an integer number (1185701334750).

Almost surely, 2^{30311123202312} is an apocalyptic number.

It is an amenable number.

30311123202312 is an abundant number, since it is smaller than the sum of its proper divisors (45573762221688).

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

30311123202312 is a wasteful number, since it uses less digits than its factorization.

30311123202312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315470 (or 315466 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 30311123202312 its reverse (21320232111303), we get a palindrome (51631355313615).

The spelling of 30311123202312 in words is "thirty trillion, three hundred eleven billion, one hundred twenty-three million, two hundred two thousand, three hundred twelve".