1021140143 has 2 divisors, whose sum is σ = 1021140144. Its totient is φ = 1021140142.

The previous prime is 1021140091. The next prime is 1021140151. The reversal of 1021140143 is 3410411201.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1021140143 - 2⁸ = 1021139887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021140193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510570071 + 510570072.

It is an arithmetic number, because the mean of its divisors is an integer number (510570072).

Almost surely, 2^1021140143 is an apocalyptic number.

1021140143 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021140143 is an equidigital number, since it uses as much as digits as its factorization.

1021140143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1021140143 is about 31955.2834911537. The cubic root of 1021140143 is about 1006.9976332449.

Adding to 1021140143 its reverse (3410411201), we get a palindrome (4431551344).

The spelling of 1021140143 in words is "one billion, twenty-one million, one hundred forty thousand, one hundred forty-three".