1202201213123 has 16 divisors (see below), whose sum is σ = 1308545817120. Its totient is φ = 1099872400896.

The previous prime is 1202201213119. The next prime is 1202201213131. The reversal of 1202201213123 is 3213121022021.

It is a cyclic number.

It is not a de Polignac number, because 1202201213123 - 2² = 1202201213119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1202201213095 and 1202201213104.

It is not an unprimeable number, because it can be changed into a prime (1202201213183) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 221561 + ... + 1566362.

It is an arithmetic number, because the mean of its divisors is an integer number (81784113570).

Almost surely, 2^{1202201213123} is an apocalyptic number.

1202201213123 is a deficient number, since it is larger than the sum of its proper divisors (106344603997).

1202201213123 is a wasteful number, since it uses less digits than its factorization.

1202201213123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1789046.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1202201213123 its reverse (3213121022021), we get a palindrome (4415322235144).

The spelling of 1202201213123 in words is "one trillion, two hundred two billion, two hundred one million, two hundred thirteen thousand, one hundred twenty-three".