12124521253 has 8 divisors (see below), whose sum is σ = 13063534848. Its totient is φ = 11186415984.

The previous prime is 12124521209. The next prime is 12124521257. The reversal of 12124521253 is 35212542121.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12124521253 - 2³³ = 3534586661 is a prime.

It is a super-2 number, since 2×12124521253² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12124521257) 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, 199225 + ... + 252862.

It is an arithmetic number, because the mean of its divisors is an integer number (1632941856).

Almost surely, 2^12124521253 is an apocalyptic number.

12124521253 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12124521253 is a deficient number, since it is larger than the sum of its proper divisors (939013595).

12124521253 is a wasteful number, since it uses less digits than its factorization.

12124521253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454163.

The product of its digits is 4800, while the sum is 28.

The spelling of 12124521253 in words is "twelve billion, one hundred twenty-four million, five hundred twenty-one thousand, two hundred fifty-three".