11004420431 has 8 divisors (see below), whose sum is σ = 11025570864. Its totient is φ = 10983288960.

The previous prime is 11004420409. The next prime is 11004420439. The reversal of 11004420431 is 13402440011.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11004420431 is a prime.

It is a super-2 number, since 2×11004420431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11004420439) 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, 1694711 + ... + 1701191.

It is an arithmetic number, because the mean of its divisors is an integer number (1378196358).

Almost surely, 2^11004420431 is an apocalyptic number.

11004420431 is a deficient number, since it is larger than the sum of its proper divisors (21150433).

11004420431 is an equidigital number, since it uses as much as digits as its factorization.

11004420431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9481.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 11004420431 its reverse (13402440011), we get a palindrome (24406860442).

The spelling of 11004420431 in words is "eleven billion, four million, four hundred twenty thousand, four hundred thirty-one".