120660554431 has 4 divisors (see below), whose sum is σ = 121788223272. Its totient is φ = 119532885592.

The previous prime is 120660554429. The next prime is 120660554491. The reversal of 120660554431 is 134455066021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134455066021 = 9739 ⋅13805839.

It is a cyclic number.

It is not a de Polignac number, because 120660554431 - 2¹ = 120660554429 is a prime.

It is a super-2 number, since 2×120660554431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120660554491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 563834260 + ... + 563834473.

It is an arithmetic number, because the mean of its divisors is an integer number (30447055818).

Almost surely, 2^120660554431 is an apocalyptic number.

120660554431 is a deficient number, since it is larger than the sum of its proper divisors (1127668841).

120660554431 is a wasteful number, since it uses less digits than its factorization.

120660554431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1127668840.

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 120660554431 in words is "one hundred twenty billion, six hundred sixty million, five hundred fifty-four thousand, four hundred thirty-one".