31040143134 has 256 divisors, whose sum is σ = 85575813120. Its totient is φ = 7289118720.

The previous prime is 31040143111. The next prime is 31040143157. The reversal of 31040143134 is 43134104013.

It is an interprime number because it is at equal distance from previous prime (31040143111) and next prime (31040143157).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 53795454 + ... + 53796030.

It is an arithmetic number, because the mean of its divisors is an integer number (334280520).

Almost surely, 2^31040143134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31040143134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42787906560).

31040143134 is an abundant number, since it is smaller than the sum of its proper divisors (54535669986).

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

31040143134 is a wasteful number, since it uses less digits than its factorization.

31040143134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692 (or 666 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 31040143134 its reverse (43134104013), we get a palindrome (74174247147).

The spelling of 31040143134 in words is "thirty-one billion, forty million, one hundred forty-three thousand, one hundred thirty-four".