231061122152 has 16 divisors (see below), whose sum is σ = 495130976160. Its totient is φ = 99026195184.

The previous prime is 231061122143. The next prime is 231061122161. The reversal of 231061122152 is 251221160132.

231061122152 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (231061122143) and next prime (231061122161).

It is a super-2 number, since 2×231061122152² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2063045678 + ... + 2063045789.

It is an arithmetic number, because the mean of its divisors is an integer number (30945686010).

Almost surely, 2^231061122152 is an apocalyptic number.

It is an amenable number.

231061122152 is an abundant number, since it is smaller than the sum of its proper divisors (264069854008).

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

231061122152 is a wasteful number, since it uses less digits than its factorization.

231061122152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4126091480 (or 4126091476 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 231061122152 its reverse (251221160132), we get a palindrome (482282282284).

The spelling of 231061122152 in words is "two hundred thirty-one billion, sixty-one million, one hundred twenty-two thousand, one hundred fifty-two".