101131023197 has 2 divisors, whose sum is σ = 101131023198. Its totient is φ = 101131023196.

The previous prime is 101131023101. The next prime is 101131023233. The reversal of 101131023197 is 791320131101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92818324921 + 8312698276 = 304661^2 + 91174^2 .

It is a cyclic number.

It is not a de Polignac number, because 101131023197 - 2¹⁶ = 101130957661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101131023397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50565511598 + 50565511599.

It is an arithmetic number, because the mean of its divisors is an integer number (50565511599).

Almost surely, 2^101131023197 is an apocalyptic number.

It is an amenable number.

101131023197 is a deficient number, since it is larger than the sum of its proper divisors (1).

101131023197 is an equidigital number, since it uses as much as digits as its factorization.

101131023197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134, while the sum is 29.

Adding to 101131023197 its reverse (791320131101), we get a palindrome (892451154298).

The spelling of 101131023197 in words is "one hundred one billion, one hundred thirty-one million, twenty-three thousand, one hundred ninety-seven".