1143100520121 has 16 divisors (see below), whose sum is σ = 1744737112064. Its totient is φ = 652124177424.

The previous prime is 1143100520113. The next prime is 1143100520153. The reversal of 1143100520121 is 1210250013411.

It is not a de Polignac number, because 1143100520121 - 2³ = 1143100520113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1143100520021) 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 15 ways as a sum of consecutive naturals, for example, 44825275 + ... + 44850768.

It is an arithmetic number, because the mean of its divisors is an integer number (109046069504).

Almost surely, 2^{1143100520121} is an apocalyptic number.

It is an amenable number.

1143100520121 is a deficient number, since it is larger than the sum of its proper divisors (601636591943).

1143100520121 is an equidigital number, since it uses as much as digits as its factorization.

1143100520121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89676660.

The product of its (nonzero) digits is 240, while the sum is 21.

Adding to 1143100520121 its reverse (1210250013411), we get a palindrome (2353350533532).

The spelling of 1143100520121 in words is "one trillion, one hundred forty-three billion, one hundred million, five hundred twenty thousand, one hundred twenty-one".