20120251101254 has 8 divisors (see below), whose sum is σ = 30691908459720. Its totient is φ = 9889614948016.

The previous prime is 20120251101239. The next prime is 20120251101319. The reversal of 20120251101254 is 45210115202102.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85255301159 + ... + 85255301394.

It is an arithmetic number, because the mean of its divisors is an integer number (3836488557465).

Almost surely, 2^{20120251101254} is an apocalyptic number.

20120251101254 is a deficient number, since it is larger than the sum of its proper divisors (10571657358466).

20120251101254 is a wasteful number, since it uses less digits than its factorization.

20120251101254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170510602614.

The product of its (nonzero) digits is 1600, while the sum is 26.

Adding to 20120251101254 its reverse (45210115202102), we get a palindrome (65330366303356).

The spelling of 20120251101254 in words is "twenty trillion, one hundred twenty billion, two hundred fifty-one million, one hundred one thousand, two hundred fifty-four".