1102203012 has 24 divisors (see below), whose sum is σ = 2574050976. Its totient is φ = 367080448.

The previous prime is 1102202993. The next prime is 1102203019. The reversal of 1102203012 is 2103022011.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (1102203019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25533 + ... + 53444.

It is an arithmetic number, because the mean of its divisors is an integer number (107252124).

Almost surely, 2^1102203012 is an apocalyptic number.

1102203012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1102203012 is an abundant number, since it is smaller than the sum of its proper divisors (1471847964).

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

1102203012 is a wasteful number, since it uses less digits than its factorization.

1102203012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80147 (or 80145 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1102203012 is about 33199.4429471339. The cubic root of 1102203012 is about 1032.9687848531.

Adding to 1102203012 its reverse (2103022011), we get a palindrome (3205225023).

The spelling of 1102203012 in words is "one billion, one hundred two million, two hundred three thousand, twelve".