1121202004 has 24 divisors (see below), whose sum is σ = 2120275080. Its totient is φ = 515704704.

The previous prime is 1121202001. The next prime is 1121202011. The reversal of 1121202004 is 4002021211.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 410872900 + 710329104 = 20270^2 + 26652^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121202001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21559 + ... + 52030.

It is an arithmetic number, because the mean of its divisors is an integer number (88344795).

Almost surely, 2^1121202004 is an apocalyptic number.

It is an amenable number.

1121202004 is a deficient number, since it is larger than the sum of its proper divisors (999073076).

1121202004 is a wasteful number, since it uses less digits than its factorization.

1121202004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73899 (or 73897 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1121202004 is about 33484.3546152528. The cubic root of 1121202004 is about 1038.8701993712.

Adding to 1121202004 its reverse (4002021211), we get a palindrome (5123223215).

The spelling of 1121202004 in words is "one billion, one hundred twenty-one million, two hundred two thousand, four".