1100242420431 has 64 divisors (see below), whose sum is σ = 1834631147520. Its totient is φ = 569789475840.

The previous prime is 1100242420427. The next prime is 1100242420481. The reversal of 1100242420431 is 1340242420011.

It is not a de Polignac number, because 1100242420431 - 2² = 1100242420427 is a prime.

It is a super-2 number, since 2×1100242420431² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100242420481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 112230376 + ... + 112240178.

It is an arithmetic number, because the mean of its divisors is an integer number (28666111680).

Almost surely, 2^{1100242420431} is an apocalyptic number.

1100242420431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1100242420431 is a deficient number, since it is larger than the sum of its proper divisors (734388727089).

1100242420431 is a wasteful number, since it uses less digits than its factorization.

1100242420431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11276.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 1100242420431 its reverse (1340242420011), we get a palindrome (2440484840442).

The spelling of 1100242420431 in words is "one trillion, one hundred billion, two hundred forty-two million, four hundred twenty thousand, four hundred thirty-one".