31240343011125 has 32 divisors (see below), whose sum is σ = 52010015271552. Its totient is φ = 16653155856000.

The previous prime is 31240343011121. The next prime is 31240343011151. The reversal of 31240343011125 is 52111034304213.

It is not a de Polignac number, because 31240343011125 - 2² = 31240343011121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31240343011092 and 31240343011101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31240343011121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20152671 + ... + 21647420.

It is an arithmetic number, because the mean of its divisors is an integer number (1625312977236).

Almost surely, 2^{31240343011125} is an apocalyptic number.

It is an amenable number.

31240343011125 is a deficient number, since it is larger than the sum of its proper divisors (20769672260427).

31240343011125 is a wasteful number, since it uses less digits than its factorization.

31240343011125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41802102 (or 41802092 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 31240343011125 its reverse (52111034304213), we get a palindrome (83351377315338).

The spelling of 31240343011125 in words is "thirty-one trillion, two hundred forty billion, three hundred forty-three million, eleven thousand, one hundred twenty-five".