15121120253 has 8 divisors (see below), whose sum is σ = 15902803968. Its totient is φ = 14349790224.

The previous prime is 15121120249. The next prime is 15121120283. The reversal of 15121120253 is 35202112151.

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 15121120253 - 2² = 15121120249 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15121120283) 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, 2585426 + ... + 2591267.

It is an arithmetic number, because the mean of its divisors is an integer number (1987850496).

Almost surely, 2^15121120253 is an apocalyptic number.

It is an amenable number.

15121120253 is a deficient number, since it is larger than the sum of its proper divisors (781683715).

15121120253 is a wasteful number, since it uses less digits than its factorization.

15121120253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5176843.

The product of its (nonzero) digits is 600, while the sum is 23.

The spelling of 15121120253 in words is "fifteen billion, one hundred twenty-one million, one hundred twenty thousand, two hundred fifty-three".