1123103202012 has 144 divisors (see below), whose sum is σ = 3320731814400. Its totient is φ = 316259873280.

The previous prime is 1123103201993. The next prime is 1123103202037. The reversal of 1123103202012 is 2102023013211.

1123103202012 is a `hidden beast` number, since 1 + 1 + 2 + 310 + 320 + 20 + 12 = 666.

It is a super-2 number, since 2×1123103202012² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 524062 + ... + 1587717.

It is an arithmetic number, because the mean of its divisors is an integer number (23060637600).

Almost surely, 2^{1123103202012} is an apocalyptic number.

1123103202012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1123103202012 is an abundant number, since it is smaller than the sum of its proper divisors (2197628612388).

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

1123103202012 is a wasteful number, since it uses less digits than its factorization.

1123103202012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2111896 (or 2111891 counting only the distinct ones).

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

Adding to 1123103202012 its reverse (2102023013211), we get a palindrome (3225126215223).

The spelling of 1123103202012 in words is "one trillion, one hundred twenty-three billion, one hundred three million, two hundred two thousand, twelve".