102123031112 has 16 divisors (see below), whose sum is σ = 191571335340. Its totient is φ = 51037341696.

The previous prime is 102123031081. The next prime is 102123031123. The reversal of 102123031112 is 211130321201.

It can be written as a sum of positive squares in 2 ways, for example, as 90966179236 + 11156851876 = 301606^2 + 105626^2 .

It is a super-2 number, since 2×102123031112² (a number of 23 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, 3003773 + ... + 3037580.

Almost surely, 2^102123031112 is an apocalyptic number.

It is an amenable number.

102123031112 is a deficient number, since it is larger than the sum of its proper divisors (89448304228).

102123031112 is a wasteful number, since it uses less digits than its factorization.

102123031112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6043472 (or 6043468 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 102123031112 its reverse (211130321201), we get a palindrome (313253352313).

The spelling of 102123031112 in words is "one hundred two billion, one hundred twenty-three million, thirty-one thousand, one hundred twelve".