12503522051402 has 4 divisors (see below), whose sum is σ = 18755283077106. Its totient is φ = 6251761025700.

The previous prime is 12503522051381. The next prime is 12503522051407. The reversal of 12503522051402 is 20415022530521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 7998596456041 + 4504925595361 = 2828179^2 + 2122481^2 .

It is not an unprimeable number, because it can be changed into a prime (12503522051407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3125880512849 + ... + 3125880512852.

Almost surely, 2^{12503522051402} is an apocalyptic number.

12503522051402 is a deficient number, since it is larger than the sum of its proper divisors (6251761025704).

12503522051402 is an equidigital number, since it uses as much as digits as its factorization.

12503522051402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6251761025703.

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 12503522051402 its reverse (20415022530521), we get a palindrome (32918544581923).

The spelling of 12503522051402 in words is "twelve trillion, five hundred three billion, five hundred twenty-two million, fifty-one thousand, four hundred two".