1100031212423 has 16 divisors (see below), whose sum is σ = 1293138946176. Its totient is φ = 922535555040.

The previous prime is 1100031212353. The next prime is 1100031212431. The reversal of 1100031212423 is 3242121300011.

It is not a de Polignac number, because 1100031212423 - 2¹² = 1100031208327 is a prime.

It is a super-3 number, since 3×1100031212423³ (a number of 37 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1100031212395 and 1100031212404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100031212123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2131361 + ... + 2596682.

It is an arithmetic number, because the mean of its divisors is an integer number (80821184136).

Almost surely, 2^{1100031212423} is an apocalyptic number.

1100031212423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1100031212423 is a deficient number, since it is larger than the sum of its proper divisors (193107733753).

1100031212423 is a wasteful number, since it uses less digits than its factorization.

1100031212423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4729694.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1100031212423 its reverse (3242121300011), we get a palindrome (4342152512434).

The spelling of 1100031212423 in words is "one trillion, one hundred billion, thirty-one million, two hundred twelve thousand, four hundred twenty-three".