245311335443431 has 4 divisors (see below), whose sum is σ = 247840318283152. Its totient is φ = 242782352603712.

The previous prime is 245311335443423. The next prime is 245311335443453. The reversal of 245311335443431 is 134344533113542.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 245311335443431 - 2³ = 245311335443423 is a prime.

It is a super-2 number, since 2×245311335443431² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245311339443431) 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, 1264491419715 + ... + 1264491419908.

It is an arithmetic number, because the mean of its divisors is an integer number (61960079570788).

Almost surely, 2^{245311335443431} is an apocalyptic number.

245311335443431 is a deficient number, since it is larger than the sum of its proper divisors (2528982839721).

245311335443431 is an equidigital number, since it uses as much as digits as its factorization.

245311335443431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2528982839720.

The product of its digits is 3110400, while the sum is 46.

Adding to 245311335443431 its reverse (134344533113542), we get a palindrome (379655868556973).

The spelling of 245311335443431 in words is "two hundred forty-five trillion, three hundred eleven billion, three hundred thirty-five million, four hundred forty-three thousand, four hundred thirty-one".