1131061051 has 16 divisors (see below), whose sum is σ = 1277920800. Its totient is φ = 994664448.

The previous prime is 1131061049. The next prime is 1131061079. The reversal of 1131061051 is 1501601311.

It is a cyclic number.

It is not a de Polignac number, because 1131061051 - 2¹ = 1131061049 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131061021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 406 + ... + 47563.

It is an arithmetic number, because the mean of its divisors is an integer number (79870050).

Almost surely, 2^1131061051 is an apocalyptic number.

1131061051 is a deficient number, since it is larger than the sum of its proper divisors (146859749).

1131061051 is a wasteful number, since it uses less digits than its factorization.

1131061051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48078.

The product of its (nonzero) digits is 90, while the sum is 19.

The square root of 1131061051 is about 33631.2511066716. The cubic root of 1131061051 is about 1041.9063441599.

Adding to 1131061051 its reverse (1501601311), we get a palindrome (2632662362).

It can be divided in two parts, 11310 and 61051, that added together give a square (72361 = 269²).

The spelling of 1131061051 in words is "one billion, one hundred thirty-one million, sixty-one thousand, fifty-one".