1302120213 has 32 divisors (see below), whose sum is σ = 1843036800. Its totient is φ = 816480000.

The previous prime is 1302120203. The next prime is 1302120223. The reversal of 1302120213 is 3120212031.

It is an interprime number because it is at equal distance from previous prime (1302120203) and next prime (1302120223).

It is not a de Polignac number, because 1302120213 - 2¹² = 1302116117 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1302120192 and 1302120201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1302120203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 577338 + ... + 579588.

It is an arithmetic number, because the mean of its divisors is an integer number (57594900).

Almost surely, 2^1302120213 is an apocalyptic number.

It is an amenable number.

1302120213 is a deficient number, since it is larger than the sum of its proper divisors (540916587).

1302120213 is a wasteful number, since it uses less digits than its factorization.

1302120213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2453.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1302120213 is about 36084.9028403846. The cubic root of 1302120213 is about 1091.9858903771.

Adding to 1302120213 its reverse (3120212031), we get a palindrome (4422332244).

The spelling of 1302120213 in words is "one billion, three hundred two million, one hundred twenty thousand, two hundred thirteen".