1202121202023 has 24 divisors (see below), whose sum is σ = 2003000358528. Its totient is φ = 680506524432.

The previous prime is 1202121202003. The next prime is 1202121202027. The reversal of 1202121202023 is 3202021212021.

It is not a de Polignac number, because 1202121202023 - 2¹⁰ = 1202121200999 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1202121201987 and 1202121202005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202121202027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89158161 + ... + 89171642.

It is an arithmetic number, because the mean of its divisors is an integer number (83458348272).

Almost surely, 2^{1202121202023} is an apocalyptic number.

1202121202023 is a deficient number, since it is larger than the sum of its proper divisors (800879156505).

1202121202023 is a wasteful number, since it uses less digits than its factorization.

1202121202023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178329923 (or 178329920 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 1202121202023 its reverse (3202021212021), we get a palindrome (4404142414044).

The spelling of 1202121202023 in words is "one trillion, two hundred two billion, one hundred twenty-one million, two hundred two thousand, twenty-three".