641132011 has 8 divisors (see below), whose sum is σ = 690777584. Its totient is φ = 591533280.

The previous prime is 641131993. The next prime is 641132027. The reversal of 641132011 is 110231146.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 641132011 - 2⁵ = 641131979 is a prime.

It is a super-2 number, since 2×641132011² = 822100511057808242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 641132011.

It is not an unprimeable number, because it can be changed into a prime (641132081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19900 + ... + 40966.

It is an arithmetic number, because the mean of its divisors is an integer number (86347198).

Almost surely, 2^641132011 is an apocalyptic number.

641132011 is a deficient number, since it is larger than the sum of its proper divisors (49645573).

641132011 is a wasteful number, since it uses less digits than its factorization.

641132011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23421.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 641132011 is about 25320.5847286353. The cubic root of 641132011 is about 862.2816691927.

Adding to 641132011 its reverse (110231146), we get a palindrome (751363157).

The spelling of 641132011 in words is "six hundred forty-one million, one hundred thirty-two thousand, eleven".