245430023431 has 4 divisors (see below), whose sum is σ = 245492461864. Its totient is φ = 245367585000.

The previous prime is 245430023411. The next prime is 245430023437. The reversal of 245430023431 is 134320034542.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134320034542 = 2 ⋅67160017271.

It is a cyclic number.

It is not a de Polignac number, because 245430023431 - 2⁷ = 245430023303 is a prime.

It is a super-2 number, since 2×245430023431² (a number of 24 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 = 245430023393 and 245430023402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245430023437) 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, 31213320 + ... + 31221181.

It is an arithmetic number, because the mean of its divisors is an integer number (61373115466).

Almost surely, 2^245430023431 is an apocalyptic number.

245430023431 is a deficient number, since it is larger than the sum of its proper divisors (62438433).

245430023431 is an equidigital number, since it uses as much as digits as its factorization.

245430023431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62438432.

The product of its (nonzero) digits is 34560, while the sum is 31.

Adding to 245430023431 its reverse (134320034542), we get a palindrome (379750057973).

The spelling of 245430023431 in words is "two hundred forty-five billion, four hundred thirty million, twenty-three thousand, four hundred thirty-one".