31400124101 has 4 divisors (see below), whose sum is σ = 32765346912. Its totient is φ = 30034901292.

The previous prime is 31400124089. The next prime is 31400124131. The reversal of 31400124101 is 10142100413.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31400124101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31400124101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31400124131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 682611371 + ... + 682611416.

It is an arithmetic number, because the mean of its divisors is an integer number (8191336728).

Almost surely, 2^31400124101 is an apocalyptic number.

It is an amenable number.

31400124101 is a deficient number, since it is larger than the sum of its proper divisors (1365222811).

31400124101 is a wasteful number, since it uses less digits than its factorization.

31400124101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1365222810.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 31400124101 its reverse (10142100413), we get a palindrome (41542224514).

The spelling of 31400124101 in words is "thirty-one billion, four hundred million, one hundred twenty-four thousand, one hundred one".