31120140151 has 2 divisors, whose sum is σ = 31120140152. Its totient is φ = 31120140150.

The previous prime is 31120140137. The next prime is 31120140229. The reversal of 31120140151 is 15104102113.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31120140151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31120140131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15560070075 + 15560070076.

It is an arithmetic number, because the mean of its divisors is an integer number (15560070076).

Almost surely, 2^31120140151 is an apocalyptic number.

31120140151 is a deficient number, since it is larger than the sum of its proper divisors (1).

31120140151 is an equidigital number, since it uses as much as digits as its factorization.

31120140151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 19.

Adding to 31120140151 its reverse (15104102113), we get a palindrome (46224242264).

The spelling of 31120140151 in words is "thirty-one billion, one hundred twenty million, one hundred forty thousand, one hundred fifty-one".