1213230333 has 16 divisors (see below), whose sum is σ = 1898698880. Its totient is φ = 674536896.

The previous prime is 1213230331. The next prime is 1213230371. The reversal of 1213230333 is 3330323121.

It is not a de Polignac number, because 1213230333 - 2¹ = 1213230331 is a prime.

It is a super-2 number, since 2×1213230333² = 2943855681822581778, which contains 22 as substring.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213230331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 779938 + ... + 781491.

It is an arithmetic number, because the mean of its divisors is an integer number (118668680).

Almost surely, 2^1213230333 is an apocalyptic number.

It is an amenable number.

1213230333 is a deficient number, since it is larger than the sum of its proper divisors (685468547).

1213230333 is a wasteful number, since it uses less digits than its factorization.

1213230333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1561476.

The product of its (nonzero) digits is 972, while the sum is 21.

The square root of 1213230333 is about 34831.4560849816. The cubic root of 1213230333 is about 1066.5496724005.

Adding to 1213230333 its reverse (3330323121), we get a palindrome (4543553454).

The spelling of 1213230333 in words is "one billion, two hundred thirteen million, two hundred thirty thousand, three hundred thirty-three".