401972832011 has 2 divisors, whose sum is σ = 401972832012. Its totient is φ = 401972832010.

The previous prime is 401972831989. The next prime is 401972832061. The reversal of 401972832011 is 110238279104.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 401972832011 - 2⁶ = 401972831947 is a prime.

It is not a weakly prime, because it can be changed into another prime (401972832061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200986416005 + 200986416006.

It is an arithmetic number, because the mean of its divisors is an integer number (200986416006).

Almost surely, 2^401972832011 is an apocalyptic number.

401972832011 is a deficient number, since it is larger than the sum of its proper divisors (1).

401972832011 is an equidigital number, since it uses as much as digits as its factorization.

401972832011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 38.

The spelling of 401972832011 in words is "four hundred one billion, nine hundred seventy-two million, eight hundred thirty-two thousand, eleven".