31042332111 has 8 divisors (see below), whose sum is σ = 47302601344. Its totient is φ = 17738475480.

The previous prime is 31042332059. The next prime is 31042332119. The reversal of 31042332111 is 11123324013.

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

It is not a de Polignac number, because 31042332111 - 2¹¹ = 31042330063 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 1478206291 = 31042332111 / (3 + 1 + 0 + 4 + 2 + 3 + 3 + 2 + 1 + 1 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31042332119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 739103125 + ... + 739103166.

It is an arithmetic number, because the mean of its divisors is an integer number (5912825168).

Almost surely, 2^31042332111 is an apocalyptic number.

31042332111 is a deficient number, since it is larger than the sum of its proper divisors (16260269233).

31042332111 is a wasteful number, since it uses less digits than its factorization.

31042332111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1478206301.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 31042332111 its reverse (11123324013), we get a palindrome (42165656124).

The spelling of 31042332111 in words is "thirty-one billion, forty-two million, three hundred thirty-two thousand, one hundred eleven".