1401421040431 has 4 divisors (see below), whose sum is σ = 1401423482664. Its totient is φ = 1401418598200.

The previous prime is 1401421040401. The next prime is 1401421040491. The reversal of 1401421040431 is 1340401241041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1401421040431 - 2⁵ = 1401421040399 is a prime.

It is a super-2 number, since 2×1401421040431² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1401421040396 and 1401421040405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401421040401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161301 + ... + 1681921.

It is an arithmetic number, because the mean of its divisors is an integer number (350355870666).

Almost surely, 2^{1401421040431} is an apocalyptic number.

1401421040431 is a deficient number, since it is larger than the sum of its proper divisors (2442233).

1401421040431 is an equidigital number, since it uses as much as digits as its factorization.

1401421040431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2442232.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 1401421040431 its reverse (1340401241041), we get a palindrome (2741822281472).

The spelling of 1401421040431 in words is "one trillion, four hundred one billion, four hundred twenty-one million, forty thousand, four hundred thirty-one".