11213099685 has 48 divisors (see below), whose sum is σ = 19601524800. Its totient is φ = 5929604352.

The previous prime is 11213099663. The next prime is 11213099693. The reversal of 11213099685 is 58699031211.

It is not a de Polignac number, because 11213099685 - 2¹² = 11213095589 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 11213099685.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3051009 + ... + 3054681.

It is an arithmetic number, because the mean of its divisors is an integer number (408365100).

Almost surely, 2^11213099685 is an apocalyptic number.

11213099685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11213099685 is a deficient number, since it is larger than the sum of its proper divisors (8388425115).

11213099685 is a wasteful number, since it uses less digits than its factorization.

11213099685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4242 (or 4239 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 45.

The spelling of 11213099685 in words is "eleven billion, two hundred thirteen million, ninety-nine thousand, six hundred eighty-five".