401337827243 has 2 divisors, whose sum is σ = 401337827244. Its totient is φ = 401337827242.

The previous prime is 401337827197. The next prime is 401337827251. The reversal of 401337827243 is 342728733104.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 401337827243 - 2¹⁸ = 401337565099 is a prime.

It is a super-2 number, since 2×401337827243² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401337827194 and 401337827203.

It is not a weakly prime, because it can be changed into another prime (401337824243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200668913621 + 200668913622.

It is an arithmetic number, because the mean of its divisors is an integer number (200668913622).

Almost surely, 2^401337827243 is an apocalyptic number.

401337827243 is a deficient number, since it is larger than the sum of its proper divisors (1).

401337827243 is an equidigital number, since it uses as much as digits as its factorization.

401337827243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 677376, while the sum is 44.

The spelling of 401337827243 in words is "four hundred one billion, three hundred thirty-seven million, eight hundred twenty-seven thousand, two hundred forty-three".