140372779331 has 2 divisors, whose sum is σ = 140372779332. Its totient is φ = 140372779330.

The previous prime is 140372779259. The next prime is 140372779333. The reversal of 140372779331 is 133977273041.

It is a strong prime.

It is an emirp because it is prime and its reverse (133977273041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140372779331 - 2¹⁴ = 140372762947 is a prime.

It is a super-2 number, since 2×140372779331² (a number of 23 digits) contains 22 as substring.

Together with 140372779333, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (140372779333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70186389665 + 70186389666.

It is an arithmetic number, because the mean of its divisors is an integer number (70186389666).

Almost surely, 2^140372779331 is an apocalyptic number.

140372779331 is a deficient number, since it is larger than the sum of its proper divisors (1).

140372779331 is an equidigital number, since it uses as much as digits as its factorization.

140372779331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 666792, while the sum is 47.

The spelling of 140372779331 in words is "one hundred forty billion, three hundred seventy-two million, seven hundred seventy-nine thousand, three hundred thirty-one".