31453490347 has 2 divisors, whose sum is σ = 31453490348. Its totient is φ = 31453490346.

The previous prime is 31453490291. The next prime is 31453490407. The reversal of 31453490347 is 74309435413.

It is a weak prime.

It is an emirp because it is prime and its reverse (74309435413) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31453490347 - 2¹⁹ = 31452966059 is a prime.

It is not a weakly prime, because it can be changed into another prime (31453490647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15726745173 + 15726745174.

It is an arithmetic number, because the mean of its divisors is an integer number (15726745174).

Almost surely, 2^31453490347 is an apocalyptic number.

31453490347 is a deficient number, since it is larger than the sum of its proper divisors (1).

31453490347 is an equidigital number, since it uses as much as digits as its factorization.

31453490347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 43.

The spelling of 31453490347 in words is "thirty-one billion, four hundred fifty-three million, four hundred ninety thousand, three hundred forty-seven".