101231511497 has 2 divisors, whose sum is σ = 101231511498. Its totient is φ = 101231511496.

The previous prime is 101231511473. The next prime is 101231511547. The reversal of 101231511497 is 794115132101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100456668601 + 774842896 = 316949^2 + 27836^2 .

It is an emirp because it is prime and its reverse (794115132101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 101231511497 - 2¹⁰ = 101231510473 is a prime.

It is not a weakly prime, because it can be changed into another prime (101231511397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50615755748 + 50615755749.

It is an arithmetic number, because the mean of its divisors is an integer number (50615755749).

Almost surely, 2^101231511497 is an apocalyptic number.

It is an amenable number.

101231511497 is a deficient number, since it is larger than the sum of its proper divisors (1).

101231511497 is an equidigital number, since it uses as much as digits as its factorization.

101231511497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 35.

Adding to 101231511497 its reverse (794115132101), we get a palindrome (895346643598).

The spelling of 101231511497 in words is "one hundred one billion, two hundred thirty-one million, five hundred eleven thousand, four hundred ninety-seven".