1213512301 has 8 divisors (see below), whose sum is σ = 1243799424. Its totient is φ = 1183258080.

The previous prime is 1213512299. The next prime is 1213512323. The reversal of 1213512301 is 1032153121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1213512301 - 2¹ = 1213512299 is a prime.

It is a super-2 number, since 2×1213512301² = 2945224209356629202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213512371) 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, 77410 + ... + 91756.

It is an arithmetic number, because the mean of its divisors is an integer number (155474928).

Almost surely, 2^1213512301 is an apocalyptic number.

It is an amenable number.

1213512301 is a deficient number, since it is larger than the sum of its proper divisors (30287123).

1213512301 is a wasteful number, since it uses less digits than its factorization.

1213512301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16451.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 1213512301 is about 34835.5034555265. The cubic root of 1213512301 is about 1066.6322919369.

Adding to 1213512301 its reverse (1032153121), we get a palindrome (2245665422).

The spelling of 1213512301 in words is "one billion, two hundred thirteen million, five hundred twelve thousand, three hundred one".