1126212131 has 4 divisors (see below), whose sum is σ = 1228595064. Its totient is φ = 1023829200.

The previous prime is 1126212091. The next prime is 1126212133. The reversal of 1126212131 is 1312126211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1126212131 is a prime.

It is a super-2 number, since 2×1126212131² = 2536707528023122322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1126212133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51191450 + ... + 51191471.

It is an arithmetic number, because the mean of its divisors is an integer number (307148766).

Almost surely, 2^1126212131 is an apocalyptic number.

1126212131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1126212131 is a deficient number, since it is larger than the sum of its proper divisors (102382933).

1126212131 is a wasteful number, since it uses less digits than its factorization.

1126212131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102382932.

The product of its digits is 144, while the sum is 20.

The square root of 1126212131 is about 33559.0841799951. The cubic root of 1126212131 is about 1040.4153084281.

Adding to 1126212131 its reverse (1312126211), we get a palindrome (2438338342).

The spelling of 1126212131 in words is "one billion, one hundred twenty-six million, two hundred twelve thousand, one hundred thirty-one".