120518053431 has 16 divisors (see below), whose sum is σ = 162026965344. Its totient is φ = 79679597184.

The previous prime is 120518053429. The next prime is 120518053457. The reversal of 120518053431 is 134350815021.

It is not a de Polignac number, because 120518053431 - 2¹ = 120518053429 is a prime.

It is a super-2 number, since 2×120518053431² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120518053392 and 120518053401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120518054431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86416 + ... + 498501.

It is an arithmetic number, because the mean of its divisors is an integer number (10126685334).

Almost surely, 2^120518053431 is an apocalyptic number.

120518053431 is a deficient number, since it is larger than the sum of its proper divisors (41508911913).

120518053431 is a wasteful number, since it uses less digits than its factorization.

120518053431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585490.

The product of its (nonzero) digits is 14400, while the sum is 33.

Adding to 120518053431 its reverse (134350815021), we get a palindrome (254868868452).

The spelling of 120518053431 in words is "one hundred twenty billion, five hundred eighteen million, fifty-three thousand, four hundred thirty-one".