1011421231043 has 2 divisors, whose sum is σ = 1011421231044. Its totient is φ = 1011421231042.

The previous prime is 1011421231003. The next prime is 1011421231091. The reversal of 1011421231043 is 3401321241101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1011421231043 - 2¹⁰ = 1011421230019 is a prime.

It is not a weakly prime, because it can be changed into another prime (1011421231003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505710615521 + 505710615522.

It is an arithmetic number, because the mean of its divisors is an integer number (505710615522).

Almost surely, 2^{1011421231043} is an apocalyptic number.

1011421231043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011421231043 is an equidigital number, since it uses as much as digits as its factorization.

1011421231043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 1011421231043 its reverse (3401321241101), we get a palindrome (4412742472144).

The spelling of 1011421231043 in words is "one trillion, eleven billion, four hundred twenty-one million, two hundred thirty-one thousand, forty-three".