31105620453 has 8 divisors (see below), whose sum is σ = 41587170688. Its totient is φ = 20680575264.

The previous prime is 31105620451. The next prime is 31105620457. The reversal of 31105620453 is 35402650113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31105620453 - 2¹ = 31105620451 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31105620453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31105620451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14124976 + ... + 14127177.

It is an arithmetic number, because the mean of its divisors is an integer number (5198396336).

Almost surely, 2^31105620453 is an apocalyptic number.

It is an amenable number.

31105620453 is a deficient number, since it is larger than the sum of its proper divisors (10481550235).

31105620453 is a wasteful number, since it uses less digits than its factorization.

31105620453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28252523.

The product of its (nonzero) digits is 10800, while the sum is 30.

The spelling of 31105620453 in words is "thirty-one billion, one hundred five million, six hundred twenty thousand, four hundred fifty-three".