201031122129977 has 8 divisors (see below), whose sum is σ = 202328833343616. Its totient is φ = 199734529155232.

The previous prime is 201031122129967. The next prime is 201031122129991. The reversal of 201031122129977 is 779921221130102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201031122129977 - 2⁴ = 201031122129961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201031122129917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279199013 + ... + 279918114.

It is an arithmetic number, because the mean of its divisors is an integer number (25291104167952).

Almost surely, 2^{201031122129977} is an apocalyptic number.

It is an amenable number.

201031122129977 is a deficient number, since it is larger than the sum of its proper divisors (1297711213639).

201031122129977 is a wasteful number, since it uses less digits than its factorization.

201031122129977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559119447.

The product of its (nonzero) digits is 190512, while the sum is 47.

The spelling of 201031122129977 in words is "two hundred one trillion, thirty-one billion, one hundred twenty-two million, one hundred twenty-nine thousand, nine hundred seventy-seven".