1143100520021 has 2 divisors, whose sum is σ = 1143100520022. Its totient is φ = 1143100520020.

The previous prime is 1143100520017. The next prime is 1143100520033. The reversal of 1143100520021 is 1200250013411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 700058523025 + 443041996996 = 836695^2 + 665614^2 .

It is a cyclic number.

It is not a de Polignac number, because 1143100520021 - 2² = 1143100520017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1143100519975 and 1143100520002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1143100520521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571550260010 + 571550260011.

It is an arithmetic number, because the mean of its divisors is an integer number (571550260011).

Almost surely, 2^{1143100520021} is an apocalyptic number.

It is an amenable number.

1143100520021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143100520021 is an equidigital number, since it uses as much as digits as its factorization.

1143100520021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 1143100520021 its reverse (1200250013411), we get a palindrome (2343350533432).

The spelling of 1143100520021 in words is "one trillion, one hundred forty-three billion, one hundred million, five hundred twenty thousand, twenty-one".