12501403143506 has 16 divisors (see below), whose sum is σ = 19028913228864. Its totient is φ = 6158835873264.

The previous prime is 12501403143487. The next prime is 12501403143521. The reversal of 12501403143506 is 60534130410521.

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, 100889366 + ... + 101013201.

It is an arithmetic number, because the mean of its divisors is an integer number (1189307076804).

Almost surely, 2^{12501403143506} is an apocalyptic number.

12501403143506 is a deficient number, since it is larger than the sum of its proper divisors (6527510085358).

12501403143506 is a wasteful number, since it uses less digits than its factorization.

12501403143506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201903025.

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 12501403143506 in words is "twelve trillion, five hundred one billion, four hundred three million, one hundred forty-three thousand, five hundred six".