31234142112 has 48 divisors (see below), whose sum is σ = 82401681600. Its totient is φ = 10359055872.

The previous prime is 31234142089. The next prime is 31234142119. The reversal of 31234142112 is 21124143213.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×31234142112² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (31234142119) 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, 798373 + ... + 836580.

It is an arithmetic number, because the mean of its divisors is an integer number (1716701700).

Almost surely, 2^31234142112 is an apocalyptic number.

31234142112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31234142112 is an abundant number, since it is smaller than the sum of its proper divisors (51167539488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31234142112 is a wasteful number, since it uses less digits than its factorization.

31234142112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1635165 (or 1635157 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

Adding to 31234142112 its reverse (21124143213), we get a palindrome (52358285325).

It can be divided in two parts, 312341 and 42112, that added together give a palindrome (354453).

The spelling of 31234142112 in words is "thirty-one billion, two hundred thirty-four million, one hundred forty-two thousand, one hundred twelve".