100103021012 has 6 divisors (see below), whose sum is σ = 175180286778. Its totient is φ = 50051510504.

The previous prime is 100103020993. The next prime is 100103021099. The reversal of 100103021012 is 210120301001.

It can be written as a sum of positive squares in only one way, i.e., 77855508676 + 22247512336 = 279026^2 + 149156^2 .

It is a super-2 number, since 2×100103021012² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100103020984 and 100103021002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12512877623 + ... + 12512877630.

It is an arithmetic number, because the mean of its divisors is an integer number (29196714463).

Almost surely, 2^100103021012 is an apocalyptic number.

It is an amenable number.

100103021012 is a deficient number, since it is larger than the sum of its proper divisors (75077265766).

100103021012 is a wasteful number, since it uses less digits than its factorization.

100103021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25025755257 (or 25025755255 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 100103021012 its reverse (210120301001), we get a palindrome (310223322013).

The spelling of 100103021012 in words is "one hundred billion, one hundred three million, twenty-one thousand, twelve".