120621101254 has 4 divisors (see below), whose sum is σ = 180931651884. Its totient is φ = 60310550626.

The previous prime is 120621101243. The next prime is 120621101267. The reversal of 120621101254 is 452101126021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 452101126021 = 31 ⋅14583907291.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30155275312 + ... + 30155275315.

It is an arithmetic number, because the mean of its divisors is an integer number (45232912971).

Almost surely, 2^120621101254 is an apocalyptic number.

120621101254 is a deficient number, since it is larger than the sum of its proper divisors (60310550630).

120621101254 is an equidigital number, since it uses as much as digits as its factorization.

120621101254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60310550629.

The product of its (nonzero) digits is 960, while the sum is 25.

Adding to 120621101254 its reverse (452101126021), we get a palindrome (572722227275).

The spelling of 120621101254 in words is "one hundred twenty billion, six hundred twenty-one million, one hundred one thousand, two hundred fifty-four".