1113211011 has 24 divisors (see below), whose sum is σ = 1633418752. Its totient is φ = 673873200.

The previous prime is 1113211009. The next prime is 1113211013. The reversal of 1113211011 is 1101123111.

It is an interprime number because it is at equal distance from previous prime (1113211009) and next prime (1113211013).

It is not a de Polignac number, because 1113211011 - 2¹ = 1113211009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1113211013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 480546 + ... + 482856.

Almost surely, 2^1113211011 is an apocalyptic number.

1113211011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1113211011 is a deficient number, since it is larger than the sum of its proper divisors (520207741).

1113211011 is a wasteful number, since it uses less digits than its factorization.

1113211011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3663 (or 3652 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 12.

The square root of 1113211011 is about 33364.8169633823. The cubic root of 1113211011 is about 1036.3962457541.

Adding to 1113211011 its reverse (1101123111), we get a palindrome (2214334122).

It can be divided in two parts, 11132110 and 11, that added together give a triangular number (11132121 = T₄₇₁₈).

The spelling of 1113211011 in words is "one billion, one hundred thirteen million, two hundred eleven thousand, eleven".