400250112013 has 4 divisors (see below), whose sum is σ = 400689465408. Its totient is φ = 399810758620.

The previous prime is 400250111983. The next prime is 400250112061. The reversal of 400250112013 is 310211052004.

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-400250112013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400250113013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219675331 + ... + 219677152.

It is an arithmetic number, because the mean of its divisors is an integer number (100172366352).

Almost surely, 2^400250112013 is an apocalyptic number.

It is an amenable number.

400250112013 is a deficient number, since it is larger than the sum of its proper divisors (439353395).

400250112013 is an equidigital number, since it uses as much as digits as its factorization.

400250112013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439353394.

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 400250112013 its reverse (310211052004), we get a palindrome (710461164017).

The spelling of 400250112013 in words is "four hundred billion, two hundred fifty million, one hundred twelve thousand, thirteen".