23654321381357 has 2 divisors, whose sum is σ = 23654321381358. Its totient is φ = 23654321381356.

The previous prime is 23654321381311. The next prime is 23654321381377. The reversal of 23654321381357 is 75318312345632.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23623352068996 + 30969312361 = 4860386^2 + 175981^2 .

It is a cyclic number.

It is not a de Polignac number, because 23654321381357 - 2⁴² = 19256274870253 is a prime.

It is a super-2 number, since 2×23654321381357² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23654321381299 and 23654321381308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23654321381377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11827160690678 + 11827160690679.

It is an arithmetic number, because the mean of its divisors is an integer number (11827160690679).

Almost surely, 2^{23654321381357} is an apocalyptic number.

It is an amenable number.

23654321381357 is a deficient number, since it is larger than the sum of its proper divisors (1).

23654321381357 is an equidigital number, since it uses as much as digits as its factorization.

23654321381357 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10886400, while the sum is 53.

The spelling of 23654321381357 in words is "twenty-three trillion, six hundred fifty-four billion, three hundred twenty-one million, three hundred eighty-one thousand, three hundred fifty-seven".