11211403124 has 48 divisors (see below), whose sum is σ = 20454674688. Its totient is φ = 5372585088.

The previous prime is 11211403121. The next prime is 11211403129. The reversal of 11211403124 is 42130411211.

It is a junction number, because it is equal to n+sod(n) for n = 11211403096 and 11211403105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11211403121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8737787 + ... + 8739069.

It is an arithmetic number, because the mean of its divisors is an integer number (426139056).

Almost surely, 2^11211403124 is an apocalyptic number.

It is an amenable number.

11211403124 is a deficient number, since it is larger than the sum of its proper divisors (9243271564).

11211403124 is a wasteful number, since it uses less digits than its factorization.

11211403124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2264 (or 2262 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 11211403124 its reverse (42130411211), we get a palindrome (53341814335).

The spelling of 11211403124 in words is "eleven billion, two hundred eleven million, four hundred three thousand, one hundred twenty-four".