400523155243 has 2 divisors, whose sum is σ = 400523155244. Its totient is φ = 400523155242.

The previous prime is 400523155187. The next prime is 400523155289. The reversal of 400523155243 is 342551325004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 400523155243 - 2¹³ = 400523147051 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 400523155199 and 400523155208.

It is not a weakly prime, because it can be changed into another prime (400523155943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200261577621 + 200261577622.

It is an arithmetic number, because the mean of its divisors is an integer number (200261577622).

Almost surely, 2^400523155243 is an apocalyptic number.

400523155243 is a deficient number, since it is larger than the sum of its proper divisors (1).

400523155243 is an equidigital number, since it uses as much as digits as its factorization.

400523155243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72000, while the sum is 34.

The spelling of 400523155243 in words is "four hundred billion, five hundred twenty-three million, one hundred fifty-five thousand, two hundred forty-three".