400302101123 has 16 divisors (see below), whose sum is σ = 430587311616. Its totient is φ = 370800090240.

The previous prime is 400302101077. The next prime is 400302101153. The reversal of 400302101123 is 321101203004.

It is a cyclic number.

It is not a de Polignac number, because 400302101123 - 2⁸ = 400302100867 is a prime.

It is a super-2 number, since 2×400302101123² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400302101153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168263 + ... + 910448.

It is an arithmetic number, because the mean of its divisors is an integer number (26911706976).

Almost surely, 2^400302101123 is an apocalyptic number.

400302101123 is a deficient number, since it is larger than the sum of its proper divisors (30285210493).

400302101123 is a wasteful number, since it uses less digits than its factorization.

400302101123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1079074.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 400302101123 its reverse (321101203004), we get a palindrome (721403304127).

The spelling of 400302101123 in words is "four hundred billion, three hundred two million, one hundred one thousand, one hundred twenty-three".