1101212242143 has 64 divisors (see below), whose sum is σ = 1641290649600. Its totient is φ = 652179962880.

The previous prime is 1101212242139. The next prime is 1101212242157. The reversal of 1101212242143 is 3412422121011.

It is not a de Polignac number, because 1101212242143 - 2² = 1101212242139 is a prime.

It is a super-2 number, since 2×1101212242143² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101212242103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 190551228 + ... + 190557006.

It is an arithmetic number, because the mean of its divisors is an integer number (25645166400).

Almost surely, 2^{1101212242143} is an apocalyptic number.

1101212242143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1101212242143 is a deficient number, since it is larger than the sum of its proper divisors (540078407457).

1101212242143 is a wasteful number, since it uses less digits than its factorization.

1101212242143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6672.

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 1101212242143 its reverse (3412422121011), we get a palindrome (4513634363154).

The spelling of 1101212242143 in words is "one trillion, one hundred one billion, two hundred twelve million, two hundred forty-two thousand, one hundred forty-three".