247002306431 has 4 divisors (see below), whose sum is σ = 247003368864. Its totient is φ = 247001244000.

The previous prime is 247002306413. The next prime is 247002306451. The reversal of 247002306431 is 134603200742.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-247002306431 is a prime.

It is a super-2 number, since 2×247002306431² (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 (247002306451) 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, 15770 + ... + 703031.

It is an arithmetic number, because the mean of its divisors is an integer number (61750842216).

Almost surely, 2^247002306431 is an apocalyptic number.

247002306431 is a deficient number, since it is larger than the sum of its proper divisors (1062433).

247002306431 is an equidigital number, since it uses as much as digits as its factorization.

247002306431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1062432.

The product of its (nonzero) digits is 24192, while the sum is 32.

The spelling of 247002306431 in words is "two hundred forty-seven billion, two million, three hundred six thousand, four hundred thirty-one".