31042100001 has 24 divisors (see below), whose sum is σ = 45689585760. Its totient is φ = 18732598720.

The previous prime is 31042099999. The next prime is 31042100039. The reversal of 31042100001 is 10000124013.

It is a happy number.

It is not a de Polignac number, because 31042100001 - 2¹ = 31042099999 is a prime.

It is a super-2 number, since 2×31042100001² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31042100001.

It is not an unprimeable number, because it can be changed into a prime (31042100501) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 98931 + ... + 268088.

It is an arithmetic number, because the mean of its divisors is an integer number (1903732740).

Almost surely, 2^31042100001 is an apocalyptic number.

It is an amenable number.

31042100001 is a deficient number, since it is larger than the sum of its proper divisors (14647485759).

31042100001 is a wasteful number, since it uses less digits than its factorization.

31042100001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367277 (or 367266 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 31042100001 its reverse (10000124013), we get a palindrome (41042224014).

The spelling of 31042100001 in words is "thirty-one billion, forty-two million, one hundred thousand, one".