101312551100 has 36 divisors (see below), whose sum is σ = 220049983608. Its totient is φ = 40487832000.

The previous prime is 101312551057. The next prime is 101312551111. The reversal of 101312551100 is 1155213101.

It is a happy number.

It is a super-2 number, since 2×101312551100² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

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, 355211 + ... + 573410.

Almost surely, 2^101312551100 is an apocalyptic number.

101312551100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101312551100 is an abundant number, since it is smaller than the sum of its proper divisors (118737432508).

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

101312551100 is a wasteful number, since it uses less digits than its factorization.

101312551100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929726 (or 929719 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 20.

Adding to 101312551100 its reverse (1155213101), we get a palindrome (102467764201).

The spelling of 101312551100 in words is "one hundred one billion, three hundred twelve million, five hundred fifty-one thousand, one hundred".