1201011131 has 2 divisors, whose sum is σ = 1201011132. Its totient is φ = 1201011130.

The previous prime is 1201011107. The next prime is 1201011143. The reversal of 1201011131 is 1311101021.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1201011131 - 2⁶ = 1201011067 is a prime.

It is a super-2 number, since 2×1201011131² = 2884855473571798322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1201011151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600505565 + 600505566.

It is an arithmetic number, because the mean of its divisors is an integer number (600505566).

Almost surely, 2^1201011131 is an apocalyptic number.

1201011131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201011131 is an equidigital number, since it uses as much as digits as its factorization.

1201011131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6, while the sum is 11.

The square root of 1201011131 is about 34655.6074972002. The cubic root of 1201011131 is about 1062.9569540082.

Adding to 1201011131 its reverse (1311101021), we get a palindrome (2512112152).

The spelling of 1201011131 in words is "one billion, two hundred one million, eleven thousand, one hundred thirty-one".