31240343011100 has 36 divisors (see below), whose sum is σ = 67797085063008. Its totient is φ = 12495115872000.

The previous prime is 31240343011079. The next prime is 31240343011121. The reversal of 31240343011100 is 111034304213.

It is an interprime number because it is at equal distance from previous prime (31240343011079) and next prime (31240343011121).

It is a super-2 number, since 2×31240343011100² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11536436 + ... + 13984635.

Almost surely, 2^{31240343011100} is an apocalyptic number.

It is an amenable number.

31240343011100 is an abundant number, since it is smaller than the sum of its proper divisors (36556742051908).

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

31240343011100 is a wasteful number, since it uses less digits than its factorization.

31240343011100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25533326 (or 25533319 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 31240343011100 its reverse (111034304213), we get a palindrome (31351377315313).

The spelling of 31240343011100 in words is "thirty-one trillion, two hundred forty billion, three hundred forty-three million, eleven thousand, one hundred".