31141722345 has 32 divisors (see below), whose sum is σ = 50062172160. Its totient is φ = 16530609600.

The previous prime is 31141722307. The next prime is 31141722349. The reversal of 31141722345 is 54322714113.

It is not a de Polignac number, because 31141722345 - 2⁶ = 31141722281 is a prime.

It is a super-2 number, since 2×31141722345² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31141722349) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3398520 + ... + 3407670.

It is an arithmetic number, because the mean of its divisors is an integer number (1564442880).

Almost surely, 2^31141722345 is an apocalyptic number.

It is an amenable number.

31141722345 is a deficient number, since it is larger than the sum of its proper divisors (18920449815).

31141722345 is a wasteful number, since it uses less digits than its factorization.

31141722345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10205.

The product of its digits is 20160, while the sum is 33.

The spelling of 31141722345 in words is "thirty-one billion, one hundred forty-one million, seven hundred twenty-two thousand, three hundred forty-five".