24312720973 has 2 divisors, whose sum is σ = 24312720974. Its totient is φ = 24312720972.

The previous prime is 24312720959. The next prime is 24312720983. The reversal of 24312720973 is 37902721342.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18062553609 + 6250167364 = 134397^2 + 79058^2 .

It is a cyclic number.

It is not a de Polignac number, because 24312720973 - 2⁵ = 24312720941 is a prime.

It is a super-2 number, since 2×24312720973² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24312720983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12156360486 + 12156360487.

It is an arithmetic number, because the mean of its divisors is an integer number (12156360487).

Almost surely, 2^24312720973 is an apocalyptic number.

It is an amenable number.

24312720973 is a deficient number, since it is larger than the sum of its proper divisors (1).

24312720973 is an equidigital number, since it uses as much as digits as its factorization.

24312720973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127008, while the sum is 40.

The spelling of 24312720973 in words is "twenty-four billion, three hundred twelve million, seven hundred twenty thousand, nine hundred seventy-three".