31453742107 has 4 divisors (see below), whose sum is σ = 31986856440. Its totient is φ = 30920627776.

The previous prime is 31453742063. The next prime is 31453742119. The reversal of 31453742107 is 70124735413.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31453742107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31453742807) 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, 266557078 + ... + 266557195.

It is an arithmetic number, because the mean of its divisors is an integer number (7996714110).

Almost surely, 2^31453742107 is an apocalyptic number.

31453742107 is a deficient number, since it is larger than the sum of its proper divisors (533114333).

31453742107 is an equidigital number, since it uses as much as digits as its factorization.

31453742107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533114332.

The product of its (nonzero) digits is 70560, while the sum is 37.

The spelling of 31453742107 in words is "thirty-one billion, four hundred fifty-three million, seven hundred forty-two thousand, one hundred seven".