201001212031 has 2 divisors, whose sum is σ = 201001212032. Its totient is φ = 201001212030.

The previous prime is 201001212023. The next prime is 201001212089. The reversal of 201001212031 is 130212100102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201001212031 - 2³ = 201001212023 is a prime.

It is a super-2 number, since 2×201001212031² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201001212011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100500606015 + 100500606016.

It is an arithmetic number, because the mean of its divisors is an integer number (100500606016).

Almost surely, 2^201001212031 is an apocalyptic number.

201001212031 is a deficient number, since it is larger than the sum of its proper divisors (1).

201001212031 is an equidigital number, since it uses as much as digits as its factorization.

201001212031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 201001212031 its reverse (130212100102), we get a palindrome (331213312133).

The spelling of 201001212031 in words is "two hundred one billion, one million, two hundred twelve thousand, thirty-one".