400403212144303 has 2 divisors, whose sum is σ = 400403212144304. Its totient is φ = 400403212144302.

The previous prime is 400403212144297. The next prime is 400403212144339. The reversal of 400403212144303 is 303441212304004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 400403212144303 - 2²⁵ = 400403178589871 is a prime.

It is a super-3 number, since 3×400403212144303³ (a number of 45 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400403212154303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200201606072151 + 200201606072152.

It is an arithmetic number, because the mean of its divisors is an integer number (200201606072152).

Almost surely, 2^{400403212144303} is an apocalyptic number.

400403212144303 is a deficient number, since it is larger than the sum of its proper divisors (1).

400403212144303 is an equidigital number, since it uses as much as digits as its factorization.

400403212144303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 400403212144303 its reverse (303441212304004), we get a palindrome (703844424448307).

The spelling of 400403212144303 in words is "four hundred trillion, four hundred three billion, two hundred twelve million, one hundred forty-four thousand, three hundred three".