1204103121 has 32 divisors (see below), whose sum is σ = 1748476800. Its totient is φ = 732678144.

The previous prime is 1204103119. The next prime is 1204103141. The reversal of 1204103121 is 1213014021.

It is not a de Polignac number, because 1204103121 - 2¹ = 1204103119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1204103121.

It is not an unprimeable number, because it can be changed into a prime (1204103101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2050990 + ... + 2051576.

It is an arithmetic number, because the mean of its divisors is an integer number (54639900).

Almost surely, 2^1204103121 is an apocalyptic number.

It is an amenable number.

1204103121 is a deficient number, since it is larger than the sum of its proper divisors (544373679).

1204103121 is a wasteful number, since it uses less digits than its factorization.

1204103121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1105.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1204103121 is about 34700.1890628855. The cubic root of 1204103121 is about 1063.8683626624.

Adding to 1204103121 its reverse (1213014021), we get a palindrome (2417117142).

The spelling of 1204103121 in words is "one billion, two hundred four million, one hundred three thousand, one hundred twenty-one".