103129072250 has 32 divisors (see below), whose sum is σ = 193791806208. Its totient is φ = 41094752400.

The previous prime is 103129072247. The next prime is 103129072273. The reversal of 103129072250 is 52270921301.

103129072250 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 718502 + ... + 850001.

It is an arithmetic number, because the mean of its divisors is an integer number (6055993944).

Almost surely, 2^103129072250 is an apocalyptic number.

103129072250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

103129072250 is a deficient number, since it is larger than the sum of its proper divisors (90662733958).

103129072250 is a wasteful number, since it uses less digits than its factorization.

103129072250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1568783 (or 1568773 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 32.

Adding to 103129072250 its reverse (52270921301), we get a palindrome (155399993551).

The spelling of 103129072250 in words is "one hundred three billion, one hundred twenty-nine million, seventy-two thousand, two hundred fifty".