13121502423 has 8 divisors (see below), whose sum is σ = 17499387888. Its totient is φ = 8745642624.

The previous prime is 13121502419. The next prime is 13121502451. The reversal of 13121502423 is 32420512131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13121502423 - 2² = 13121502419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13121502393 and 13121502402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13121502223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 491236 + ... + 517257.

It is an arithmetic number, because the mean of its divisors is an integer number (2187423486).

Almost surely, 2^13121502423 is an apocalyptic number.

13121502423 is a deficient number, since it is larger than the sum of its proper divisors (4377885465).

13121502423 is a wasteful number, since it uses less digits than its factorization.

13121502423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012833.

The product of its (nonzero) digits is 1440, while the sum is 24.

The spelling of 13121502423 in words is "thirteen billion, one hundred twenty-one million, five hundred two thousand, four hundred twenty-three".