11121232011 has 8 divisors (see below), whose sum is σ = 15339630480. Its totient is φ = 7158494112.

The previous prime is 11121231973. The next prime is 11121232027. The reversal of 11121232011 is 11023212111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11121232011 - 2¹¹ = 11121229963 is a prime.

It is a super-2 number, since 2×11121232011² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11121234011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63915040 + ... + 63915213.

It is an arithmetic number, because the mean of its divisors is an integer number (1917453810).

Almost surely, 2^11121232011 is an apocalyptic number.

11121232011 is a deficient number, since it is larger than the sum of its proper divisors (4218398469).

11121232011 is a wasteful number, since it uses less digits than its factorization.

11121232011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127830285.

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

Adding to 11121232011 its reverse (11023212111), we get a palindrome (22144444122).

The spelling of 11121232011 in words is "eleven billion, one hundred twenty-one million, two hundred thirty-two thousand, eleven".