1200101004 has 36 divisors (see below), whose sum is σ = 3037696480. Its totient is φ = 399492000.

The previous prime is 1200100999. The next prime is 1200101011. The reversal of 1200101004 is 4001010021.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4842 + ... + 49230.

Almost surely, 2^1200101004 is an apocalyptic number.

It is an amenable number.

1200101004 is an abundant number, since it is smaller than the sum of its proper divisors (1837595476).

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

1200101004 is a wasteful number, since it uses less digits than its factorization.

1200101004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45150 (or 45145 counting only the distinct ones).

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

The square root of 1200101004 is about 34642.4739878664. The cubic root of 1200101004 is about 1062.6883830034.

Adding to 1200101004 its reverse (4001010021), we get a palindrome (5201111025).

The spelling of 1200101004 in words is "one billion, two hundred million, one hundred one thousand, four".