120518054431 has 2 divisors, whose sum is σ = 120518054432. Its totient is φ = 120518054430.

The previous prime is 120518054411. The next prime is 120518054467. The reversal of 120518054431 is 134450815021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120518054431 - 2⁹ = 120518053919 is a prime.

It is a super-2 number, since 2×120518054431² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120518054401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60259027215 + 60259027216.

It is an arithmetic number, because the mean of its divisors is an integer number (60259027216).

Almost surely, 2^120518054431 is an apocalyptic number.

120518054431 is a deficient number, since it is larger than the sum of its proper divisors (1).

120518054431 is an equidigital number, since it uses as much as digits as its factorization.

120518054431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19200, while the sum is 34.

Adding to 120518054431 its reverse (134450815021), we get a palindrome (254968869452).

The spelling of 120518054431 in words is "one hundred twenty billion, five hundred eighteen million, fifty-four thousand, four hundred thirty-one".