401423040021203 has 4 divisors (see below), whose sum is σ = 403460720427600. Its totient is φ = 399385359614808.

The previous prime is 401423040021169. The next prime is 401423040021253. The reversal of 401423040021203 is 302120040324104.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401423040021203 is a prime.

It is a super-2 number, since 2×401423040021203² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401423040021253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1018840202903 + ... + 1018840203296.

It is an arithmetic number, because the mean of its divisors is an integer number (100865180106900).

Almost surely, 2^{401423040021203} is an apocalyptic number.

401423040021203 is a deficient number, since it is larger than the sum of its proper divisors (2037680406397).

401423040021203 is a wasteful number, since it uses less digits than its factorization.

401423040021203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2037680406396.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 401423040021203 its reverse (302120040324104), we get a palindrome (703543080345307).

The spelling of 401423040021203 in words is "four hundred one trillion, four hundred twenty-three billion, forty million, twenty-one thousand, two hundred three".