10920523523 has 20 divisors (see below), whose sum is σ = 13719880608. Its totient is φ = 8640389520.

The previous prime is 10920523511. The next prime is 10920523547. The reversal of 10920523523 is 32532502901.

It is not a de Polignac number, because 10920523523 - 2⁴ = 10920523507 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10920523523.

It is not an unprimeable number, because it can be changed into a prime (10920522523) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 143723 + ... + 206148.

Almost surely, 2^10920523523 is an apocalyptic number.

10920523523 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

10920523523 is a deficient number, since it is larger than the sum of its proper divisors (2799357085).

10920523523 is an frugal number, since it uses more digits than its factorization.

10920523523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349912 (or 349891 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 32.

The spelling of 10920523523 in words is "ten billion, nine hundred twenty million, five hundred twenty-three thousand, five hundred twenty-three".