31435053409 has 2 divisors, whose sum is σ = 31435053410. Its totient is φ = 31435053408.

The previous prime is 31435053407. The next prime is 31435053427. The reversal of 31435053409 is 90435053413.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29608773184 + 1826280225 = 172072^2 + 42735^2 .

It is a cyclic number.

It is not a de Polignac number, because 31435053409 - 2¹ = 31435053407 is a prime.

Together with 31435053407, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (31435053407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15717526704 + 15717526705.

It is an arithmetic number, because the mean of its divisors is an integer number (15717526705).

Almost surely, 2^31435053409 is an apocalyptic number.

It is an amenable number.

31435053409 is a deficient number, since it is larger than the sum of its proper divisors (1).

31435053409 is an equidigital number, since it uses as much as digits as its factorization.

31435053409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 97200, while the sum is 37.

The spelling of 31435053409 in words is "thirty-one billion, four hundred thirty-five million, fifty-three thousand, four hundred nine".