1131421012 has 24 divisors (see below), whose sum is σ = 2045256192. Its totient is φ = 547087200.

The previous prime is 1131421007. The next prime is 1131421021. The reversal of 1131421012 is 2101241311.

It is a super-2 number, since 2×1131421012² = 2560227012790208288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 287337 + ... + 291247.

It is an arithmetic number, because the mean of its divisors is an integer number (85219008).

Almost surely, 2^1131421012 is an apocalyptic number.

It is an amenable number.

1131421012 is a deficient number, since it is larger than the sum of its proper divisors (913835180).

1131421012 is a wasteful number, since it uses less digits than its factorization.

1131421012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6279 (or 6277 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1131421012 is about 33636.6022659840. The cubic root of 1131421012 is about 1042.0168615866.

Adding to 1131421012 its reverse (2101241311), we get a palindrome (3232662323).

The spelling of 1131421012 in words is "one billion, one hundred thirty-one million, four hundred twenty-one thousand, twelve".