1211032956 has 48 divisors (see below), whose sum is σ = 3231760896. Its totient is φ = 345758784.

The previous prime is 1211032919. The next prime is 1211032981. The reversal of 1211032956 is 6592301121.

1211032956 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133105 + ... + 141911.

It is an arithmetic number, because the mean of its divisors is an integer number (67328352).

Almost surely, 2^1211032956 is an apocalyptic number.

It is an amenable number.

1211032956 is an abundant number, since it is smaller than the sum of its proper divisors (2020727940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1211032956 is a wasteful number, since it uses less digits than its factorization.

1211032956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10458 (or 10456 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 1211032956 is about 34799.8987929563. The cubic root of 1211032956 is about 1065.9053792323.

The spelling of 1211032956 in words is "one billion, two hundred eleven million, thirty-two thousand, nine hundred fifty-six".