100203102131012 has 12 divisors (see below), whose sum is σ = 181402167651180. Its totient is φ = 48373911373536.

The previous prime is 100203102130997. The next prime is 100203102131023. The reversal of 100203102131012 is 210131201302001.

It can be written as a sum of positive squares in 2 ways, for example, as 85840336180036 + 14362765950976 = 9265006^2 + 3789824^2 .

It is a super-2 number, since 2×100203102131012² (a number of 29 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, 431909922863 + ... + 431909923094.

It is an arithmetic number, because the mean of its divisors is an integer number (15116847304265).

Almost surely, 2^{100203102131012} is an apocalyptic number.

It is an amenable number.

100203102131012 is a deficient number, since it is larger than the sum of its proper divisors (81199065520168).

100203102131012 is a wasteful number, since it uses less digits than its factorization.

100203102131012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863819845990 (or 863819845988 counting only the distinct ones).

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

Adding to 100203102131012 its reverse (210131201302001), we get a palindrome (310334303433013).

The spelling of 100203102131012 in words is "one hundred trillion, two hundred three billion, one hundred two million, one hundred thirty-one thousand, twelve".