6401431402203 has 16 divisors (see below), whose sum is σ = 8766588123936. Its totient is φ = 4151965282560.

The previous prime is 6401431402187. The next prime is 6401431402253. The reversal of 6401431402203 is 3022041341046.

It is not a de Polignac number, because 6401431402203 - 2⁴ = 6401431402187 is a prime.

It is a super-2 number, since 2×6401431402203² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6401431402253) 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, 707976 + ... + 3647477.

It is an arithmetic number, because the mean of its divisors is an integer number (547911757746).

Almost surely, 2^{6401431402203} is an apocalyptic number.

6401431402203 is a deficient number, since it is larger than the sum of its proper divisors (2365156721733).

6401431402203 is a wasteful number, since it uses less digits than its factorization.

6401431402203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4368734.

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 6401431402203 its reverse (3022041341046), we get a palindrome (9423472743249).

The spelling of 6401431402203 in words is "six trillion, four hundred one billion, four hundred thirty-one million, four hundred two thousand, two hundred three".