1202123131230 has 32 divisors (see below), whose sum is σ = 3297252017664. Its totient is φ = 274771001376.

The previous prime is 1202123131193. The next prime is 1202123131303. The reversal of 1202123131230 is 321313212021.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 1202123131197 and 1202123131206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2862197722 + ... + 2862198141.

It is an arithmetic number, because the mean of its divisors is an integer number (103039125552).

Almost surely, 2^{1202123131230} is an apocalyptic number.

1202123131230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1202123131230 is an abundant number, since it is smaller than the sum of its proper divisors (2095128886434).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1202123131230 is a wasteful number, since it uses less digits than its factorization.

1202123131230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5724395880.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1202123131230 its reverse (321313212021), we get a palindrome (1523436343251).

The spelling of 1202123131230 in words is "one trillion, two hundred two billion, one hundred twenty-three million, one hundred thirty-one thousand, two hundred thirty".