30231031033220 has 24 divisors (see below), whose sum is σ = 63575728915608. Its totient is φ = 12075162176000.

The previous prime is 30231031033211. The next prime is 30231031033241. The reversal of 30231031033220 is 2233013013203.

It can be written as a sum of positive squares in 4 ways, for example, as 2089533852484 + 28141497180736 = 1445522^2 + 5304856^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1078125461 + ... + 1078153500.

It is an arithmetic number, because the mean of its divisors is an integer number (2648988704817).

Almost surely, 2^{30231031033220} is an apocalyptic number.

It is an amenable number.

30231031033220 is an abundant number, since it is smaller than the sum of its proper divisors (33344697882388).

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

30231031033220 is a wasteful number, since it uses less digits than its factorization.

30231031033220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2156279671 (or 2156279669 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 30231031033220 its reverse (2233013013203), we get a palindrome (32464044046423).

The spelling of 30231031033220 in words is "thirty trillion, two hundred thirty-one billion, thirty-one million, thirty-three thousand, two hundred twenty".