30231031222100 has 18 divisors (see below), whose sum is σ = 65601337752174. Its totient is φ = 12092412488800.

The previous prime is 30231031222043. The next prime is 30231031222103. The reversal of 30231031222100 is 122213013203.

It can be written as a sum of positive squares in 3 ways, for example, as 1170975037456 + 29060056184644 = 1082116^2 + 5390738^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30231031222103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 151155156011 + ... + 151155156210.

Almost surely, 2^{30231031222100} is an apocalyptic number.

It is an amenable number.

30231031222100 is an abundant number, since it is smaller than the sum of its proper divisors (35370306530074).

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

30231031222100 is a wasteful number, since it uses less digits than its factorization.

30231031222100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302310312235 (or 302310312228 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 30231031222100 its reverse (122213013203), we get a palindrome (30353244235303).

The spelling of 30231031222100 in words is "thirty trillion, two hundred thirty-one billion, thirty-one million, two hundred twenty-two thousand, one hundred".