201030131032091 has 2 divisors, whose sum is σ = 201030131032092. Its totient is φ = 201030131032090.

The previous prime is 201030131032079. The next prime is 201030131032097. The reversal of 201030131032091 is 190230131030102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201030131032091 is a prime.

It is a super-2 number, since 2×201030131032091² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 201030131032091.

It is not a weakly prime, because it can be changed into another prime (201030131032097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100515065516045 + 100515065516046.

It is an arithmetic number, because the mean of its divisors is an integer number (100515065516046).

Almost surely, 2^{201030131032091} is an apocalyptic number.

201030131032091 is a deficient number, since it is larger than the sum of its proper divisors (1).

201030131032091 is an equidigital number, since it uses as much as digits as its factorization.

201030131032091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 26.

Adding to 201030131032091 its reverse (190230131030102), we get a palindrome (391260262062193).

The spelling of 201030131032091 in words is "two hundred one trillion, thirty billion, one hundred thirty-one million, thirty-two thousand, ninety-one".