400343322101 has 4 divisors (see below), whose sum is σ = 400441473600. Its totient is φ = 400245170604.

The previous prime is 400343322053. The next prime is 400343322151. The reversal of 400343322101 is 101223343004.

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 not a de Polignac number, because 400343322101 - 2⁶ = 400343322037 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 (400343322151) 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, 49069631 + ... + 49077788.

It is an arithmetic number, because the mean of its divisors is an integer number (100110368400).

Almost surely, 2^400343322101 is an apocalyptic number.

It is an amenable number.

400343322101 is a deficient number, since it is larger than the sum of its proper divisors (98151499).

400343322101 is an equidigital number, since it uses as much as digits as its factorization.

400343322101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98151498.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 400343322101 its reverse (101223343004), we get a palindrome (501566665105).

The spelling of 400343322101 in words is "four hundred billion, three hundred forty-three million, three hundred twenty-two thousand, one hundred one".