11031010997 has 2 divisors, whose sum is σ = 11031010998. Its totient is φ = 11031010996.

The previous prime is 11031010973. The next prime is 11031011023. The reversal of 11031010997 is 79901013011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9839449636 + 1191561361 = 99194^2 + 34519^2 .

It is a cyclic number.

It is not a de Polignac number, because 11031010997 - 2⁸ = 11031010741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11031010957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5515505498 + 5515505499.

It is an arithmetic number, because the mean of its divisors is an integer number (5515505499).

Almost surely, 2^11031010997 is an apocalyptic number.

It is an amenable number.

11031010997 is a deficient number, since it is larger than the sum of its proper divisors (1).

11031010997 is an equidigital number, since it uses as much as digits as its factorization.

11031010997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1701, while the sum is 32.

The spelling of 11031010997 in words is "eleven billion, thirty-one million, ten thousand, nine hundred ninety-seven".