201001031249 has 2 divisors, whose sum is σ = 201001031250. Its totient is φ = 201001031248.

The previous prime is 201001031237. The next prime is 201001031251. The reversal of 201001031249 is 942130100102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 199301530624 + 1699500625 = 446432^2 + 41225^2 .

It is a cyclic number.

It is not a de Polignac number, because 201001031249 - 2²⁴ = 200984254033 is a prime.

It is a super-2 number, since 2×201001031249² (a number of 23 digits) contains 22 as substring.

Together with 201001031251, 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 (201001031219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100500515624 + 100500515625.

It is an arithmetic number, because the mean of its divisors is an integer number (100500515625).

Almost surely, 2^201001031249 is an apocalyptic number.

It is an amenable number.

201001031249 is a deficient number, since it is larger than the sum of its proper divisors (1).

201001031249 is an equidigital number, since it uses as much as digits as its factorization.

201001031249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The spelling of 201001031249 in words is "two hundred one billion, one million, thirty-one thousand, two hundred forty-nine".