401133123111 has 32 divisors (see below), whose sum is σ = 637924008960. Its totient is φ = 219356250624.

The previous prime is 401133123107. The next prime is 401133123119. The reversal of 401133123111 is 111321331104.

It is not a de Polignac number, because 401133123111 - 2² = 401133123107 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401133123119) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2845675 + ... + 2983308.

It is an arithmetic number, because the mean of its divisors is an integer number (19935125280).

Almost surely, 2^401133123111 is an apocalyptic number.

401133123111 is a deficient number, since it is larger than the sum of its proper divisors (236790885849).

401133123111 is a wasteful number, since it uses less digits than its factorization.

401133123111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5829135.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 401133123111 its reverse (111321331104), we get a palindrome (512454454215).

The spelling of 401133123111 in words is "four hundred one billion, one hundred thirty-three million, one hundred twenty-three thousand, one hundred eleven".