124244351421 has 4 divisors (see below), whose sum is σ = 165659135232. Its totient is φ = 82829567612.

The previous prime is 124244351419. The next prime is 124244351423. The reversal of 124244351421 is 124153442421.

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: 124153442421 = 3 ⋅41384480807.

It is an interprime number because it is at equal distance from previous prime (124244351419) and next prime (124244351423).

It is a cyclic number.

It is not a de Polignac number, because 124244351421 - 2¹ = 124244351419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124244351423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20707391901 + ... + 20707391906.

It is an arithmetic number, because the mean of its divisors is an integer number (41414783808).

Almost surely, 2^124244351421 is an apocalyptic number.

It is an amenable number.

124244351421 is a deficient number, since it is larger than the sum of its proper divisors (41414783811).

124244351421 is an equidigital number, since it uses as much as digits as its factorization.

124244351421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41414783810.

The product of its digits is 30720, while the sum is 33.

Adding to 124244351421 its reverse (124153442421), we get a palindrome (248397793842).

The spelling of 124244351421 in words is "one hundred twenty-four billion, two hundred forty-four million, three hundred fifty-one thousand, four hundred twenty-one".