1203112302021 has 24 divisors (see below), whose sum is σ = 1986656191104. Its totient is φ = 687296806560.

The previous prime is 1203112302001. The next prime is 1203112302043. The reversal of 1203112302021 is 1202032113021.

1203112302021 is a `hidden beast` number, since 120 + 311 + 2 + 30 + 202 + 1 = 666.

It is not a de Polignac number, because 1203112302021 - 2⁷ = 1203112301893 is a prime.

It is a super-2 number, since 2×1203112302021² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1203112301985 and 1203112302003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1203112302001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2498406 + ... + 2940791.

It is an arithmetic number, because the mean of its divisors is an integer number (82777341296).

Almost surely, 2^{1203112302021} is an apocalyptic number.

It is an amenable number.

1203112302021 is a deficient number, since it is larger than the sum of its proper divisors (783543889083).

1203112302021 is a wasteful number, since it uses less digits than its factorization.

1203112302021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5442721 (or 5442718 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1203112302021 its reverse (1202032113021), we get a palindrome (2405144415042).

The spelling of 1203112302021 in words is "one trillion, two hundred three billion, one hundred twelve million, three hundred two thousand, twenty-one".