124004221331 has 4 divisors (see below), whose sum is σ = 124012171200. Its totient is φ = 123996271464.

The previous prime is 124004221277. The next prime is 124004221333. The reversal of 124004221331 is 133122400421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 124004221331 - 2²² = 124000027027 is a prime.

It is a super-2 number, since 2×124004221331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 124004221297 and 124004221306.

It is not an unprimeable number, because it can be changed into a prime (124004221333) 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, 3951491 + ... + 3982748.

It is an arithmetic number, because the mean of its divisors is an integer number (31003042800).

Almost surely, 2^124004221331 is an apocalyptic number.

124004221331 is a deficient number, since it is larger than the sum of its proper divisors (7949869).

124004221331 is an equidigital number, since it uses as much as digits as its factorization.

124004221331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7949868.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 124004221331 its reverse (133122400421), we get a palindrome (257126621752).

The spelling of 124004221331 in words is "one hundred twenty-four billion, four million, two hundred twenty-one thousand, three hundred thirty-one".