1201011043 has 2 divisors, whose sum is σ = 1201011044. Its totient is φ = 1201011042.

The previous prime is 1201011011. The next prime is 1201011059. The reversal of 1201011043 is 3401101021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1201011043 - 2⁵ = 1201011011 is a prime.

It is not a weakly prime, because it can be changed into another prime (1201011143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600505521 + 600505522.

It is an arithmetic number, because the mean of its divisors is an integer number (600505522).

Almost surely, 2^1201011043 is an apocalyptic number.

1201011043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201011043 is an equidigital number, since it uses as much as digits as its factorization.

1201011043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1201011043 is about 34655.6062275644. The cubic root of 1201011043 is about 1062.9569280467.

Adding to 1201011043 its reverse (3401101021), we get a palindrome (4602112064).

The spelling of 1201011043 in words is "one billion, two hundred one million, eleven thousand, forty-three".