1423400412021 has 64 divisors (see below), whose sum is σ = 2293459660800. Its totient is φ = 767086903296.

The previous prime is 1423400411921. The next prime is 1423400412043. The reversal of 1423400412021 is 1202140043241.

It is not a de Polignac number, because 1423400412021 - 2¹¹ = 1423400409973 is a prime.

It is a super-2 number, since 2×1423400412021² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1423400411982 and 1423400412000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1423400410021) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 179333365 + ... + 179341301.

It is an arithmetic number, because the mean of its divisors is an integer number (35835307200).

Almost surely, 2^{1423400412021} is an apocalyptic number.

It is an amenable number.

1423400412021 is a deficient number, since it is larger than the sum of its proper divisors (870059248779).

1423400412021 is a wasteful number, since it uses less digits than its factorization.

1423400412021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9938.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 1423400412021 its reverse (1202140043241), we get a palindrome (2625540455262).

The spelling of 1423400412021 in words is "one trillion, four hundred twenty-three billion, four hundred million, four hundred twelve thousand, twenty-one".