1202113423121 has 16 divisors (see below), whose sum is σ = 1322187869184. Its totient is φ = 1085984570304.

The previous prime is 1202113423109. The next prime is 1202113423139. The reversal of 1202113423121 is 1213243112021.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1202113423121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1202113423171) 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, 24780536 + ... + 24828998.

It is an arithmetic number, because the mean of its divisors is an integer number (82636741824).

Almost surely, 2^{1202113423121} is an apocalyptic number.

It is an amenable number.

1202113423121 is a deficient number, since it is larger than the sum of its proper divisors (120074446063).

1202113423121 is a wasteful number, since it uses less digits than its factorization.

1202113423121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89120.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 1202113423121 its reverse (1213243112021), we get a palindrome (2415356535142).

The spelling of 1202113423121 in words is "one trillion, two hundred two billion, one hundred thirteen million, four hundred twenty-three thousand, one hundred twenty-one".