31325043135 has 8 divisors (see below), whose sum is σ = 50120069040. Its totient is φ = 16706689664.

The previous prime is 31325043121. The next prime is 31325043137. The reversal of 31325043135 is 53134052313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31325043135 - 2⁵ = 31325043103 is a prime.

It is a super-2 number, since 2×31325043135² (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 (31325043137) 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, 1044168090 + ... + 1044168119.

It is an arithmetic number, because the mean of its divisors is an integer number (6265008630).

Almost surely, 2^31325043135 is an apocalyptic number.

31325043135 is a deficient number, since it is larger than the sum of its proper divisors (18795025905).

31325043135 is a wasteful number, since it uses less digits than its factorization.

31325043135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2088336217.

The product of its (nonzero) digits is 16200, while the sum is 30.

Adding to 31325043135 its reverse (53134052313), we get a palindrome (84459095448).

The spelling of 31325043135 in words is "thirty-one billion, three hundred twenty-five million, forty-three thousand, one hundred thirty-five".