1211325404 has 12 divisors (see below), whose sum is σ = 2120175624. Its totient is φ = 605560944.

The previous prime is 1211325371. The next prime is 1211325419. The reversal of 1211325404 is 4045231121.

It is a self number, because there is not a number n which added to its sum of digits gives 1211325404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5534 + ... + 49530.

It is an arithmetic number, because the mean of its divisors is an integer number (176681302).

Almost surely, 2^1211325404 is an apocalyptic number.

It is an amenable number.

1211325404 is a deficient number, since it is larger than the sum of its proper divisors (908850220).

1211325404 is a wasteful number, since it uses less digits than its factorization.

1211325404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50884 (or 50882 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1211325404 is about 34804.1003906149. The cubic root of 1211325404 is about 1065.9911728809.

Adding to 1211325404 its reverse (4045231121), we get a palindrome (5256556525).

The spelling of 1211325404 in words is "one billion, two hundred eleven million, three hundred twenty-five thousand, four hundred four".