101220113479 has 2 divisors, whose sum is σ = 101220113480. Its totient is φ = 101220113478.

The previous prime is 101220113369. The next prime is 101220113507. The reversal of 101220113479 is 974311022101.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 101220113479 - 2²⁹ = 100683242567 is a prime.

It is a super-2 number, since 2×101220113479² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 101220113479.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101220113179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50610056739 + 50610056740.

It is an arithmetic number, because the mean of its divisors is an integer number (50610056740).

Almost surely, 2^101220113479 is an apocalyptic number.

101220113479 is a deficient number, since it is larger than the sum of its proper divisors (1).

101220113479 is an equidigital number, since it uses as much as digits as its factorization.

101220113479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 31.

The spelling of 101220113479 in words is "one hundred one billion, two hundred twenty million, one hundred thirteen thousand, four hundred seventy-nine".