401030143993 has 2 divisors, whose sum is σ = 401030143994. Its totient is φ = 401030143992.

The previous prime is 401030143981. The next prime is 401030144027. The reversal of 401030143993 is 399341030104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 345007041129 + 56023102864 = 587373^2 + 236692^2 .

It is a cyclic number.

It is not a de Polignac number, because 401030143993 - 2²¹ = 401028046841 is a prime.

It is not a weakly prime, because it can be changed into another prime (401030143933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200515071996 + 200515071997.

It is an arithmetic number, because the mean of its divisors is an integer number (200515071997).

Almost surely, 2^401030143993 is an apocalyptic number.

It is an amenable number.

401030143993 is a deficient number, since it is larger than the sum of its proper divisors (1).

401030143993 is an equidigital number, since it uses as much as digits as its factorization.

401030143993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 37.

The spelling of 401030143993 in words is "four hundred one billion, thirty million, one hundred forty-three thousand, nine hundred ninety-three".