100025405012 has 24 divisors (see below), whose sum is σ = 188520974376. Its totient is φ = 46162741248.

The previous prime is 100025405003. The next prime is 100025405041. The reversal of 100025405012 is 210504520001.

It can be written as a sum of positive squares in 4 ways, for example, as 7970204176 + 92055200836 = 89276^2 + 303406^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 967568 + ... + 1065944.

It is an arithmetic number, because the mean of its divisors is an integer number (7855040599).

Almost surely, 2^100025405012 is an apocalyptic number.

It is an amenable number.

100025405012 is a deficient number, since it is larger than the sum of its proper divisors (88495569364).

100025405012 is a wasteful number, since it uses less digits than its factorization.

100025405012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117947 (or 117945 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

Adding to 100025405012 its reverse (210504520001), we get a palindrome (310529925013).

The spelling of 100025405012 in words is "one hundred billion, twenty-five million, four hundred five thousand, twelve".