101231123251 has 2 divisors, whose sum is σ = 101231123252. Its totient is φ = 101231123250.

The previous prime is 101231123237. The next prime is 101231123381. The reversal of 101231123251 is 152321132101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101231123251 - 2²⁷ = 101096905523 is a prime.

It is not a weakly prime, because it can be changed into another prime (101231123051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50615561625 + 50615561626.

It is an arithmetic number, because the mean of its divisors is an integer number (50615561626).

Almost surely, 2^101231123251 is an apocalyptic number.

101231123251 is a deficient number, since it is larger than the sum of its proper divisors (1).

101231123251 is an equidigital number, since it uses as much as digits as its factorization.

101231123251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 22.

Adding to 101231123251 its reverse (152321132101), we get a palindrome (253552255352).

The spelling of 101231123251 in words is "one hundred one billion, two hundred thirty-one million, one hundred twenty-three thousand, two hundred fifty-one".