140213111199961 has 2 divisors, whose sum is σ = 140213111199962. Its totient is φ = 140213111199960.

The previous prime is 140213111199949. The next prime is 140213111199983. The reversal of 140213111199961 is 169991111312041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 136174896360000 + 4038214839961 = 11669400^2 + 2009531^2 .

It is a cyclic number.

It is not a de Polignac number, because 140213111199961 - 2⁵ = 140213111199929 is a prime.

It is not a weakly prime, because it can be changed into another prime (140213111199461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70106555599980 + 70106555599981.

It is an arithmetic number, because the mean of its divisors is an integer number (70106555599981).

Almost surely, 2^{140213111199961} is an apocalyptic number.

It is an amenable number.

140213111199961 is a deficient number, since it is larger than the sum of its proper divisors (1).

140213111199961 is an equidigital number, since it uses as much as digits as its factorization.

140213111199961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 104976, while the sum is 49.

The spelling of 140213111199961 in words is "one hundred forty trillion, two hundred thirteen billion, one hundred eleven million, one hundred ninety-nine thousand, nine hundred sixty-one".