1031201131 has 2 divisors, whose sum is σ = 1031201132. Its totient is φ = 1031201130.

The previous prime is 1031201077. The next prime is 1031201173. The reversal of 1031201131 is 1311021301.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1031201131 - 2¹⁵ = 1031168363 is a prime.

It is a super-2 number, since 2×1031201131² = 2126751545151358322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1031204131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515600565 + 515600566.

It is an arithmetic number, because the mean of its divisors is an integer number (515600566).

Almost surely, 2^1031201131 is an apocalyptic number.

1031201131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031201131 is an equidigital number, since it uses as much as digits as its factorization.

1031201131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 1031201131 is about 32112.3205483503. The cubic root of 1031201131 is about 1010.2940460058.

Adding to 1031201131 its reverse (1311021301), we get a palindrome (2342222432).

The spelling of 1031201131 in words is "one billion, thirty-one million, two hundred one thousand, one hundred thirty-one".