402431321011 has 16 divisors (see below), whose sum is σ = 423187571520. Its totient is φ = 381955446400.

The previous prime is 402431320961. The next prime is 402431321021. The reversal of 402431321011 is 110123134204.

It is a cyclic number.

It is not a de Polignac number, because 402431321011 - 2¹¹ = 402431318963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402431321021) 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, 1925961 + ... + 2124661.

It is an arithmetic number, because the mean of its divisors is an integer number (26449223220).

Almost surely, 2^402431321011 is an apocalyptic number.

402431321011 is a deficient number, since it is larger than the sum of its proper divisors (20756250509).

402431321011 is a wasteful number, since it uses less digits than its factorization.

402431321011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199406.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 402431321011 its reverse (110123134204), we get a palindrome (512554455215).

The spelling of 402431321011 in words is "four hundred two billion, four hundred thirty-one million, three hundred twenty-one thousand, eleven".