126210132503 has 16 divisors (see below), whose sum is σ = 155371163136. Its totient is φ = 99835670880.

The previous prime is 126210132493. The next prime is 126210132511. The reversal of 126210132503 is 305231012621.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 126210132503 - 2⁶ = 126210132439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126210132593) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 245708 + ... + 559278.

It is an arithmetic number, because the mean of its divisors is an integer number (9710697696).

Almost surely, 2^126210132503 is an apocalyptic number.

126210132503 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

126210132503 is a deficient number, since it is larger than the sum of its proper divisors (29161030633).

126210132503 is a wasteful number, since it uses less digits than its factorization.

126210132503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318014.

The product of its (nonzero) digits is 2160, while the sum is 26.

The spelling of 126210132503 in words is "one hundred twenty-six billion, two hundred ten million, one hundred thirty-two thousand, five hundred three".