245241343031 has 4 divisors (see below), whose sum is σ = 245372279952. Its totient is φ = 245110406112.

The previous prime is 245241342989. The next prime is 245241343043. The reversal of 245241343031 is 130343142542.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245241343031 is a prime.

It is a super-2 number, since 2×245241343031² (a number of 24 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 (245241343331) 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, 65465651 + ... + 65469396.

It is an arithmetic number, because the mean of its divisors is an integer number (61343069988).

Almost surely, 2^245241343031 is an apocalyptic number.

245241343031 is a deficient number, since it is larger than the sum of its proper divisors (130936921).

245241343031 is a wasteful number, since it uses less digits than its factorization.

245241343031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130936920.

The product of its (nonzero) digits is 34560, while the sum is 32.

Adding to 245241343031 its reverse (130343142542), we get a palindrome (375584485573).

The spelling of 245241343031 in words is "two hundred forty-five billion, two hundred forty-one million, three hundred forty-three thousand, thirty-one".