1204000101 has 6 divisors (see below), whose sum is σ = 1739111270. Its totient is φ = 802666728.

The previous prime is 1204000087. The next prime is 1204000121. The reversal of 1204000101 is 1010004021.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 773396100 + 430604001 = 27810^2 + 20751^2 .

It is not a de Polignac number, because 1204000101 - 2¹⁸ = 1203737957 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 133777789 = 1204000101 / (1 + 2 + 0 + 4 + 0 + 0 + 0 + 1 + 0 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204000121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 66888886 + ... + 66888903.

Almost surely, 2^1204000101 is an apocalyptic number.

It is an amenable number.

1204000101 is a deficient number, since it is larger than the sum of its proper divisors (535111169).

1204000101 is a wasteful number, since it uses less digits than its factorization.

1204000101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133777795 (or 133777792 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 1204000101 is about 34698.7046011807. The cubic root of 1204000101 is about 1063.8380211735.

Adding to 1204000101 its reverse (1010004021), we get a palindrome (2214004122).

The spelling of 1204000101 in words is "one billion, two hundred four million, one hundred one", and thus it is an aban number.