30231231155 has 16 divisors (see below), whose sum is σ = 39650529024. Its totient is φ = 22028067840.

The previous prime is 30231231143. The next prime is 30231231187. The reversal of 30231231155 is 55113213203.

It is not a de Polignac number, because 30231231155 - 2²⁸ = 29962795699 is a prime.

It is a Duffinian number.

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, 5733842 + ... + 5739111.

It is an arithmetic number, because the mean of its divisors is an integer number (2478158064).

Almost surely, 2^30231231155 is an apocalyptic number.

30231231155 is a deficient number, since it is larger than the sum of its proper divisors (9419297869).

30231231155 is a wasteful number, since it uses less digits than its factorization.

30231231155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11473006.

The product of its (nonzero) digits is 2700, while the sum is 26.

Adding to 30231231155 its reverse (55113213203), we get a palindrome (85344444358).

The spelling of 30231231155 in words is "thirty billion, two hundred thirty-one million, two hundred thirty-one thousand, one hundred fifty-five".