31234143412 has 12 divisors (see below), whose sum is σ = 56544570180. Its totient is φ = 15078551936.

The previous prime is 31234143407. The next prime is 31234143419. The reversal of 31234143412 is 21434143213.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 25149519396 + 6084624016 = 158586^2 + 78004^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31234143419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134629813 + ... + 134630044.

It is an arithmetic number, because the mean of its divisors is an integer number (4712047515).

Almost surely, 2^31234143412 is an apocalyptic number.

It is an amenable number.

31234143412 is a deficient number, since it is larger than the sum of its proper divisors (25310426768).

31234143412 is a wasteful number, since it uses less digits than its factorization.

31234143412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269259890 (or 269259888 counting only the distinct ones).

The product of its digits is 6912, while the sum is 28.

Adding to 31234143412 its reverse (21434143213), we get a palindrome (52668286625).

The spelling of 31234143412 in words is "thirty-one billion, two hundred thirty-four million, one hundred forty-three thousand, four hundred twelve".