1213015353 has 16 divisors (see below), whose sum is σ = 1781860032. Its totient is φ = 727880000.

The previous prime is 1213015351. The next prime is 1213015357. The reversal of 1213015353 is 3535103121.

It is a cyclic number.

It is not a de Polignac number, because 1213015353 - 2¹ = 1213015351 is a prime.

It is a super-2 number, since 2×1213015353² = 2942812493227429218, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1213015351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178638 + ... + 185303.

It is an arithmetic number, because the mean of its divisors is an integer number (111366252).

Almost surely, 2^1213015353 is an apocalyptic number.

It is an amenable number.

1213015353 is a deficient number, since it is larger than the sum of its proper divisors (568844679).

1213015353 is a wasteful number, since it uses less digits than its factorization.

1213015353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364056.

The product of its (nonzero) digits is 1350, while the sum is 24.

The square root of 1213015353 is about 34828.3699446299. The cubic root of 1213015353 is about 1066.4866724390.

Adding to 1213015353 its reverse (3535103121), we get a palindrome (4748118474).

The spelling of 1213015353 in words is "one billion, two hundred thirteen million, fifteen thousand, three hundred fifty-three".