31324033161 has 12 divisors (see below), whose sum is σ = 45921137392. Its totient is φ = 20571006456.

The previous prime is 31324033123. The next prime is 31324033211. The reversal of 31324033161 is 16133042313.

31324033161 is a `hidden beast` number, since 3 + 1 + 324 + 0 + 331 + 6 + 1 = 666.

It is not a de Polignac number, because 31324033161 - 2¹⁴ = 31324016777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31324033121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25972891 + ... + 25974096.

Almost surely, 2^31324033161 is an apocalyptic number.

It is an amenable number.

31324033161 is a deficient number, since it is larger than the sum of its proper divisors (14597104231).

31324033161 is a wasteful number, since it uses less digits than its factorization.

31324033161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51947060 (or 51947057 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 31324033161 its reverse (16133042313), we get a palindrome (47457075474).

The spelling of 31324033161 in words is "thirty-one billion, three hundred twenty-four million, thirty-three thousand, one hundred sixty-one".