31032465461 has 4 divisors (see below), whose sum is σ = 31035675372. Its totient is φ = 31029255552.

The previous prime is 31032465437. The next prime is 31032465473. The reversal of 31032465461 is 16456423013.

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

It can be written as a sum of positive squares in 2 ways, for example, as 13997256100 + 17035209361 = 118310^2 + 130519^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31032465461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31032465161) 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, 1590410 + ... + 1609803.

It is an arithmetic number, because the mean of its divisors is an integer number (7758918843).

Almost surely, 2^31032465461 is an apocalyptic number.

It is an amenable number.

31032465461 is a deficient number, since it is larger than the sum of its proper divisors (3209911).

31032465461 is an equidigital number, since it uses as much as digits as its factorization.

31032465461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3209910.

The product of its (nonzero) digits is 51840, while the sum is 35.

Adding to 31032465461 its reverse (16456423013), we get a palindrome (47488888474).

The spelling of 31032465461 in words is "thirty-one billion, thirty-two million, four hundred sixty-five thousand, four hundred sixty-one".