1213341401 has 4 divisors (see below), whose sum is σ = 1213424100. Its totient is φ = 1213258704.

The previous prime is 1213341383. The next prime is 1213341491. The reversal of 1213341401 is 1041433121.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 947162176 + 266179225 = 30776^2 + 16315^2 .

It is a cyclic number.

It is not a de Polignac number, because 1213341401 - 2¹⁰ = 1213340377 is a prime.

It is a super-3 number, since 3×1213341401³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1213341491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12746 + ... + 50883.

It is an arithmetic number, because the mean of its divisors is an integer number (303356025).

Almost surely, 2^1213341401 is an apocalyptic number.

It is an amenable number.

1213341401 is a deficient number, since it is larger than the sum of its proper divisors (82699).

1213341401 is an equidigital number, since it uses as much as digits as its factorization.

1213341401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82698.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1213341401 is about 34833.0504119292. The cubic root of 1213341401 is about 1066.5822179997.

Adding to 1213341401 its reverse (1041433121), we get a palindrome (2254774522).

The spelling of 1213341401 in words is "one billion, two hundred thirteen million, three hundred forty-one thousand, four hundred one".