31661101114 has 8 divisors (see below), whose sum is σ = 47492440128. Its totient is φ = 15830287740.

The previous prime is 31661101081. The next prime is 31661101159. The reversal of 31661101114 is 41110116613.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102319 + ... + 271645.

It is an arithmetic number, because the mean of its divisors is an integer number (5936555016).

Almost surely, 2^31661101114 is an apocalyptic number.

31661101114 is a deficient number, since it is larger than the sum of its proper divisors (15831339014).

31661101114 is a wasteful number, since it uses less digits than its factorization.

31661101114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262820.

The product of its (nonzero) digits is 432, while the sum is 25.

Adding to 31661101114 its reverse (41110116613), we get a palindrome (72771217727).

The spelling of 31661101114 in words is "thirty-one billion, six hundred sixty-one million, one hundred one thousand, one hundred fourteen".