1124213131 has 4 divisors (see below), whose sum is σ = 1124889192. Its totient is φ = 1123537072.

The previous prime is 1124213107. The next prime is 1124213137. The reversal of 1124213131 is 1313124211.

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

It is a cyclic number.

It is not a de Polignac number, because 1124213131 - 2⁹ = 1124212619 is a prime.

It is a super-2 number, since 2×1124213131² = 2527710327825646322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1124213099 and 1124213108.

It is not an unprimeable number, because it can be changed into a prime (1124213137) 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, 335530 + ... + 338863.

It is an arithmetic number, because the mean of its divisors is an integer number (281222298).

Almost surely, 2^1124213131 is an apocalyptic number.

1124213131 is a deficient number, since it is larger than the sum of its proper divisors (676061).

1124213131 is an equidigital number, since it uses as much as digits as its factorization.

1124213131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676060.

The product of its digits is 144, while the sum is 19.

The square root of 1124213131 is about 33529.2876601934. The cubic root of 1124213131 is about 1039.7993729735.

Adding to 1124213131 its reverse (1313124211), we get a palindrome (2437337342).

The spelling of 1124213131 in words is "one billion, one hundred twenty-four million, two hundred thirteen thousand, one hundred thirty-one".