111253421 has 2 divisors, whose sum is σ = 111253422. Its totient is φ = 111253420.

The previous prime is 111253399. The next prime is 111253463. The reversal of 111253421 is 124352111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58690921 + 52562500 = 7661^2 + 7250^2 .

It is a cyclic number.

It is not a de Polignac number, because 111253421 - 2²⁶ = 44144557 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111253393 and 111253402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111283421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55626710 + 55626711.

It is an arithmetic number, because the mean of its divisors is an integer number (55626711).

Almost surely, 2^111253421 is an apocalyptic number.

It is an amenable number.

111253421 is a deficient number, since it is larger than the sum of its proper divisors (1).

111253421 is an equidigital number, since it uses as much as digits as its factorization.

111253421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 240, while the sum is 20.

The square root of 111253421 is about 10547.6737245707. The cubic root of 111253421 is about 480.9550155818.

The spelling of 111253421 in words is "one hundred eleven million, two hundred fifty-three thousand, four hundred twenty-one".