1201161201602 has 4 divisors (see below), whose sum is σ = 1801741802406. Its totient is φ = 600580600800.

The previous prime is 1201161201577. The next prime is 1201161201671. The reversal of 1201161201602 is 2061021611021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1186010299681 + 15150901921 = 1089041^2 + 123089^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300290300399 + ... + 300290300402.

Almost surely, 2^{1201161201602} is an apocalyptic number.

1201161201602 is a deficient number, since it is larger than the sum of its proper divisors (600580600804).

1201161201602 is an equidigital number, since it uses as much as digits as its factorization.

1201161201602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600580600803.

The product of its (nonzero) digits is 288, while the sum is 23.

Adding to 1201161201602 its reverse (2061021611021), we get a palindrome (3262182812623).

The spelling of 1201161201602 in words is "one trillion, two hundred one billion, one hundred sixty-one million, two hundred one thousand, six hundred two".