245310421021423 has 2 divisors, whose sum is σ = 245310421021424. Its totient is φ = 245310421021422.

The previous prime is 245310421021339. The next prime is 245310421021451. The reversal of 245310421021423 is 324120124013542.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245310421021423 is a prime.

It is a super-2 number, since 2×245310421021423² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245310421024423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122655210510711 + 122655210510712.

It is an arithmetic number, because the mean of its divisors is an integer number (122655210510712).

Almost surely, 2^{245310421021423} is an apocalyptic number.

245310421021423 is a deficient number, since it is larger than the sum of its proper divisors (1).

245310421021423 is an equidigital number, since it uses as much as digits as its factorization.

245310421021423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46080, while the sum is 34.

Adding to 245310421021423 its reverse (324120124013542), we get a palindrome (569430545034965).

The spelling of 245310421021423 in words is "two hundred forty-five trillion, three hundred ten billion, four hundred twenty-one million, twenty-one thousand, four hundred twenty-three".