1301212231 has 4 divisors (see below), whose sum is σ = 1419504264. Its totient is φ = 1182920200.

The previous prime is 1301212229. The next prime is 1301212247. The reversal of 1301212231 is 1322121031.

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

It is not a de Polignac number, because 1301212231 - 2¹ = 1301212229 is a prime.

It is a super-2 number, since 2×1301212231² = 3386306540207994722, 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 (1301212201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59146000 + ... + 59146021.

It is an arithmetic number, because the mean of its divisors is an integer number (354876066).

Almost surely, 2^1301212231 is an apocalyptic number.

1301212231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1301212231 is a deficient number, since it is larger than the sum of its proper divisors (118292033).

1301212231 is a wasteful number, since it uses less digits than its factorization.

1301212231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118292032.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1301212231 is about 36072.3194568910. The cubic root of 1301212231 is about 1091.7320136423.

Adding to 1301212231 its reverse (1322121031), we get a palindrome (2623333262).

The spelling of 1301212231 in words is "one billion, three hundred one million, two hundred twelve thousand, two hundred thirty-one".