31143422134 has 16 divisors (see below), whose sum is σ = 51383141136. Its totient is φ = 14156099760.

The previous prime is 31143422117. The next prime is 31143422137. The reversal of 31143422134 is 43122434113.

It is a happy number.

It is a super-2 number, since 2×31143422134² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31143422137) 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, 5846967 + ... + 5852290.

It is an arithmetic number, because the mean of its divisors is an integer number (3211446321).

Almost surely, 2^31143422134 is an apocalyptic number.

31143422134 is a deficient number, since it is larger than the sum of its proper divisors (20239719002).

31143422134 is a wasteful number, since it uses less digits than its factorization.

31143422134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11699292 (or 11699270 counting only the distinct ones).

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

Adding to 31143422134 its reverse (43122434113), we get a palindrome (74265856247).

The spelling of 31143422134 in words is "thirty-one billion, one hundred forty-three million, four hundred twenty-two thousand, one hundred thirty-four".