201130123122 has 24 divisors (see below), whose sum is σ = 439638415164. Its totient is φ = 66450069504.

The previous prime is 201130123111. The next prime is 201130123133. The reversal of 201130123122 is 221321031102.

It is an interprime number because it is at equal distance from previous prime (201130123111) and next prime (201130123133).

It can be written as a sum of positive squares in 2 ways, for example, as 195082105761 + 6048017361 = 441681^2 + 77769^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 201130123095 and 201130123104.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49439983 + ... + 49444050.

Almost surely, 2^201130123122 is an apocalyptic number.

201130123122 is an abundant number, since it is smaller than the sum of its proper divisors (238508292042).

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

201130123122 is a wasteful number, since it uses less digits than its factorization.

201130123122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98884154 (or 98884151 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 201130123122 its reverse (221321031102), we get a palindrome (422451154224).

The spelling of 201130123122 in words is "two hundred one billion, one hundred thirty million, one hundred twenty-three thousand, one hundred twenty-two".