1202012103 has 4 divisors (see below), whose sum is σ = 1602682808. Its totient is φ = 801341400.

The previous prime is 1202012101. The next prime is 1202012111. The reversal of 1202012103 is 3012102021.

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

It is not a de Polignac number, because 1202012103 - 2¹ = 1202012101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202012101) 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 3 ways as a sum of consecutive naturals, for example, 200335348 + ... + 200335353.

It is an arithmetic number, because the mean of its divisors is an integer number (400670702).

Almost surely, 2^1202012103 is an apocalyptic number.

1202012103 is a deficient number, since it is larger than the sum of its proper divisors (400670705).

1202012103 is an equidigital number, since it uses as much as digits as its factorization.

1202012103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400670704.

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

The square root of 1202012103 is about 34670.0461926430. The cubic root of 1202012103 is about 1063.2521759997.

Adding to 1202012103 its reverse (3012102021), we get a palindrome (4214114124).

The spelling of 1202012103 in words is "one billion, two hundred two million, twelve thousand, one hundred three".