31123421110 has 16 divisors (see below), whose sum is σ = 56027676096. Its totient is φ = 12448142208.

The previous prime is 31123421101. The next prime is 31123421141. The reversal of 31123421110 is 1112432113.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42894 + ... + 253153.

It is an arithmetic number, because the mean of its divisors is an integer number (3501729756).

Almost surely, 2^31123421110 is an apocalyptic number.

31123421110 is a deficient number, since it is larger than the sum of its proper divisors (24904254986).

31123421110 is a wasteful number, since it uses less digits than its factorization.

31123421110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306567.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 31123421110 its reverse (1112432113), we get a palindrome (32235853223).

The spelling of 31123421110 in words is "thirty-one billion, one hundred twenty-three million, four hundred twenty-one thousand, one hundred ten".