120540126431 has 2 divisors, whose sum is σ = 120540126432. Its totient is φ = 120540126430.

The previous prime is 120540126383. The next prime is 120540126461. The reversal of 120540126431 is 134621045021.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120540126431 is a prime.

It is a super-2 number, since 2×120540126431² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120540126394 and 120540126403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120540126461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60270063215 + 60270063216.

It is an arithmetic number, because the mean of its divisors is an integer number (60270063216).

Almost surely, 2^120540126431 is an apocalyptic number.

120540126431 is a deficient number, since it is larger than the sum of its proper divisors (1).

120540126431 is an equidigital number, since it uses as much as digits as its factorization.

120540126431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 29.

The spelling of 120540126431 in words is "one hundred twenty billion, five hundred forty million, one hundred twenty-six thousand, four hundred thirty-one".