120143891137 has 2 divisors, whose sum is σ = 120143891138. Its totient is φ = 120143891136.

The previous prime is 120143891123. The next prime is 120143891209. The reversal of 120143891137 is 731198341021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104680719936 + 15463171201 = 323544^2 + 124351^2 .

It is a cyclic number.

It is not a de Polignac number, because 120143891137 - 2³¹ = 117996407489 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120143891137.

It is not a weakly prime, because it can be changed into another prime (120143891117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60071945568 + 60071945569.

It is an arithmetic number, because the mean of its divisors is an integer number (60071945569).

Almost surely, 2^120143891137 is an apocalyptic number.

It is an amenable number.

120143891137 is a deficient number, since it is larger than the sum of its proper divisors (1).

120143891137 is an equidigital number, since it uses as much as digits as its factorization.

120143891137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 40.

The spelling of 120143891137 in words is "one hundred twenty billion, one hundred forty-three million, eight hundred ninety-one thousand, one hundred thirty-seven".