11121505143 has 32 divisors (see below), whose sum is σ = 17729832960. Its totient is φ = 6068202240.

The previous prime is 11121505127. The next prime is 11121505151. The reversal of 11121505143 is 34150512111.

It is not a de Polignac number, because 11121505143 - 2⁴ = 11121505127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121505193) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 96948 + ... + 177881.

It is an arithmetic number, because the mean of its divisors is an integer number (554057280).

Almost surely, 2^11121505143 is an apocalyptic number.

11121505143 is a deficient number, since it is larger than the sum of its proper divisors (6608327817).

11121505143 is a wasteful number, since it uses less digits than its factorization.

11121505143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274927.

The product of its (nonzero) digits is 600, while the sum is 24.

The spelling of 11121505143 in words is "eleven billion, one hundred twenty-one million, five hundred five thousand, one hundred forty-three".