1202203012123 has 4 divisors (see below), whose sum is σ = 1202207919088. Its totient is φ = 1202198105160.

The previous prime is 1202203012103. The next prime is 1202203012141. The reversal of 1202203012123 is 3212103022021.

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

It is a cyclic number.

It is not a de Polignac number, because 1202203012123 - 2¹³ = 1202203003931 is a prime.

It is a super-2 number, since 2×1202203012123² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1202203012123.

It is not an unprimeable number, because it can be changed into a prime (1202203012103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2065536 + ... + 2582797.

It is an arithmetic number, because the mean of its divisors is an integer number (300551979772).

Almost surely, 2^{1202203012123} is an apocalyptic number.

1202203012123 is a deficient number, since it is larger than the sum of its proper divisors (4906965).

1202203012123 is an equidigital number, since it uses as much as digits as its factorization.

1202203012123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4906964.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1202203012123 its reverse (3212103022021), we get a palindrome (4414306034144).

The spelling of 1202203012123 in words is "one trillion, two hundred two billion, two hundred three million, twelve thousand, one hundred twenty-three".