1111013421 has 16 divisors (see below), whose sum is σ = 1708798464. Its totient is φ = 628930224.

The previous prime is 1111013417. The next prime is 1111013437. The reversal of 1111013421 is 1243101111.

It is not a de Polignac number, because 1111013421 - 2² = 1111013417 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1111013421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111013471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 244975 + ... + 249468.

It is an arithmetic number, because the mean of its divisors is an integer number (106799904).

Almost surely, 2^1111013421 is an apocalyptic number.

It is an amenable number.

1111013421 is a deficient number, since it is larger than the sum of its proper divisors (597785043).

1111013421 is a wasteful number, since it uses less digits than its factorization.

1111013421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494560.

The product of its (nonzero) digits is 24, while the sum is 15.

The square root of 1111013421 is about 33331.8679494564. The cubic root of 1111013421 is about 1035.7138131728.

Adding to 1111013421 its reverse (1243101111), we get a palindrome (2354114532).

It can be divided in two parts, 11110 and 13421, that added together give a triangular number (24531 = T₂₂₁).

The spelling of 1111013421 in words is "one billion, one hundred eleven million, thirteen thousand, four hundred twenty-one".