1131032101 has 2 divisors, whose sum is σ = 1131032102. Its totient is φ = 1131032100.

The previous prime is 1131032099. The next prime is 1131032113. The reversal of 1131032101 is 1012301311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1031052100 + 99980001 = 32110^2 + 9999^2 .

It is a cyclic number.

It is not a de Polignac number, because 1131032101 - 2¹ = 1131032099 is a prime.

It is a super-2 number, since 2×1131032101² = 2558467226984948402, which contains 22 as substring.

Together with 1131032099, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1131032401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565516050 + 565516051.

It is an arithmetic number, because the mean of its divisors is an integer number (565516051).

Almost surely, 2^1131032101 is an apocalyptic number.

It is an amenable number.

1131032101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131032101 is an equidigital number, since it uses as much as digits as its factorization.

1131032101 is an evil number, because the sum of its binary digits is even.

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

The square root of 1131032101 is about 33630.8207006609. The cubic root of 1131032101 is about 1041.8974547353.

Adding to 1131032101 its reverse (1012301311), we get a palindrome (2143333412).

The spelling of 1131032101 in words is "one billion, one hundred thirty-one million, thirty-two thousand, one hundred one".