31112012343 has 8 divisors (see below), whose sum is σ = 41486167408. Its totient is φ = 20739599424.

The previous prime is 31112012317. The next prime is 31112012357. The reversal of 31112012343 is 34321021113.

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

It is not a de Polignac number, because 31112012343 - 2⁶ = 31112012279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31112012543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 393280 + ... + 465717.

It is an arithmetic number, because the mean of its divisors is an integer number (5185770926).

Almost surely, 2^31112012343 is an apocalyptic number.

31112012343 is a deficient number, since it is larger than the sum of its proper divisors (10374155065).

31112012343 is a wasteful number, since it uses less digits than its factorization.

31112012343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871073.

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

Adding to 31112012343 its reverse (34321021113), we get a palindrome (65433033456).

The spelling of 31112012343 in words is "thirty-one billion, one hundred twelve million, twelve thousand, three hundred forty-three".