1143551281138 has 8 divisors (see below), whose sum is σ = 1960373624832. Its totient is φ = 490093406196.

The previous prime is 1143551281121. The next prime is 1143551281177. The reversal of 1143551281138 is 8311821553411.

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

It is a super-2 number, since 2×1143551281138² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1143551281094 and 1143551281103.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40841117170 + ... + 40841117197.

It is an arithmetic number, because the mean of its divisors is an integer number (245046703104).

Almost surely, 2^{1143551281138} is an apocalyptic number.

1143551281138 is a deficient number, since it is larger than the sum of its proper divisors (816822343694).

1143551281138 is an equidigital number, since it uses as much as digits as its factorization.

1143551281138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81682234376.

The product of its digits is 115200, while the sum is 43.

The spelling of 1143551281138 in words is "one trillion, one hundred forty-three billion, five hundred fifty-one million, two hundred eighty-one thousand, one hundred thirty-eight".