24311112421 has 2 divisors, whose sum is σ = 24311112422. Its totient is φ = 24311112420.

The previous prime is 24311112373. The next prime is 24311112431. The reversal of 24311112421 is 12421111342.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23221188225 + 1089924196 = 152385^2 + 33014^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-24311112421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 24311112392 and 24311112401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24311112431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12155556210 + 12155556211.

It is an arithmetic number, because the mean of its divisors is an integer number (12155556211).

Almost surely, 2^24311112421 is an apocalyptic number.

It is an amenable number.

24311112421 is a deficient number, since it is larger than the sum of its proper divisors (1).

24311112421 is an equidigital number, since it uses as much as digits as its factorization.

24311112421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 384, while the sum is 22.

Adding to 24311112421 its reverse (12421111342), we get a palindrome (36732223763).

The spelling of 24311112421 in words is "twenty-four billion, three hundred eleven million, one hundred twelve thousand, four hundred twenty-one".