10140520523 has 4 divisors (see below), whose sum is σ = 11589166320. Its totient is φ = 8691874728.

The previous prime is 10140520513. The next prime is 10140520541. The reversal of 10140520523 is 32502504101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32502504101 = 193 ⋅168406757.

It is a cyclic number.

It is not a de Polignac number, because 10140520523 - 2⁶ = 10140520459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10140520513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 724322888 + ... + 724322901.

It is an arithmetic number, because the mean of its divisors is an integer number (2897291580).

Almost surely, 2^10140520523 is an apocalyptic number.

10140520523 is a deficient number, since it is larger than the sum of its proper divisors (1448645797).

10140520523 is an equidigital number, since it uses as much as digits as its factorization.

10140520523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1448645796.

The product of its (nonzero) digits is 1200, while the sum is 23.

The spelling of 10140520523 in words is "ten billion, one hundred forty million, five hundred twenty thousand, five hundred twenty-three".