245351013031 has 4 divisors (see below), whose sum is σ = 245439366912. Its totient is φ = 245262659152.

The previous prime is 245351013023. The next prime is 245351013049. The reversal of 245351013031 is 130310153542.

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: 130310153542 = 2 ⋅65155076771.

It is a cyclic number.

It is not a de Polignac number, because 245351013031 - 2³ = 245351013023 is a prime.

It is a super-2 number, since 2×245351013031² (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 (245351013001) 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, 44172775 + ... + 44178328.

It is an arithmetic number, because the mean of its divisors is an integer number (61359841728).

Almost surely, 2^245351013031 is an apocalyptic number.

245351013031 is a deficient number, since it is larger than the sum of its proper divisors (88353881).

245351013031 is an equidigital number, since it uses as much as digits as its factorization.

245351013031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88353880.

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 245351013031 its reverse (130310153542), we get a palindrome (375661166573).

The spelling of 245351013031 in words is "two hundred forty-five billion, three hundred fifty-one million, thirteen thousand, thirty-one".