101320253 has 4 divisors (see below), whose sum is σ = 101829600. Its totient is φ = 100810908.

The previous prime is 101320249. The next prime is 101320321. The reversal of 101320253 is 352023101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 352023101 = 3391 ⋅103811.

It is a cyclic number.

It is not a de Polignac number, because 101320253 - 2² = 101320249 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101323253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254375 + ... + 254772.

It is an arithmetic number, because the mean of its divisors is an integer number (25457400).

Almost surely, 2^101320253 is an apocalyptic number.

It is an amenable number.

101320253 is a deficient number, since it is larger than the sum of its proper divisors (509347).

101320253 is an equidigital number, since it uses as much as digits as its factorization.

101320253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509346.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 101320253 is about 10065.7961930490. The cubic root of 101320253 is about 466.1926496890.

Adding to 101320253 its reverse (352023101), we get a palindrome (453343354).

The spelling of 101320253 in words is "one hundred one million, three hundred twenty thousand, two hundred fifty-three".