131020093 has 2 divisors, whose sum is σ = 131020094. Its totient is φ = 131020092.

The previous prime is 131020073. The next prime is 131020103. The reversal of 131020093 is 390020131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130462084 + 558009 = 11422^2 + 747^2 .

It is a cyclic number.

It is not a de Polignac number, because 131020093 - 2¹³ = 131011901 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131020093.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131020013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65510046 + 65510047.

It is an arithmetic number, because the mean of its divisors is an integer number (65510047).

Almost surely, 2^131020093 is an apocalyptic number.

It is an amenable number.

131020093 is a deficient number, since it is larger than the sum of its proper divisors (1).

131020093 is an equidigital number, since it uses as much as digits as its factorization.

131020093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 131020093 is about 11446.4008753844. The cubic root of 131020093 is about 507.9012727417.

The spelling of 131020093 in words is "one hundred thirty-one million, twenty thousand, ninety-three".