101111010997 has 2 divisors, whose sum is σ = 101111010998. Its totient is φ = 101111010996.

The previous prime is 101111010947. The next prime is 101111011033. The reversal of 101111010997 is 799010111101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95786536036 + 5324474961 = 309494^2 + 72969^2 .

It is a cyclic number.

It is not a de Polignac number, because 101111010997 - 2¹¹ = 101111008949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101111010947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50555505498 + 50555505499.

It is an arithmetic number, because the mean of its divisors is an integer number (50555505499).

Almost surely, 2^101111010997 is an apocalyptic number.

It is an amenable number.

101111010997 is a deficient number, since it is larger than the sum of its proper divisors (1).

101111010997 is an equidigital number, since it uses as much as digits as its factorization.

101111010997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 567, while the sum is 31.

The spelling of 101111010997 in words is "one hundred one billion, one hundred eleven million, ten thousand, nine hundred ninety-seven".