140668340131 has 32 divisors (see below), whose sum is σ = 171336971520. Its totient is φ = 113821977600.

The previous prime is 140668340123. The next prime is 140668340159. The reversal of 140668340131 is 131043866041.

It is not a de Polignac number, because 140668340131 - 2³ = 140668340123 is a prime.

It is a super-2 number, since 2×140668340131² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (140668340531) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1994095 + ... + 2063431.

It is an arithmetic number, because the mean of its divisors is an integer number (5354280360).

Almost surely, 2^140668340131 is an apocalyptic number.

140668340131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

140668340131 is a deficient number, since it is larger than the sum of its proper divisors (30668631389).

140668340131 is a wasteful number, since it uses less digits than its factorization.

140668340131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69955.

The product of its (nonzero) digits is 41472, while the sum is 37.

The spelling of 140668340131 in words is "one hundred forty billion, six hundred sixty-eight million, three hundred forty thousand, one hundred thirty-one".