1231413349 has 2 divisors, whose sum is σ = 1231413350. Its totient is φ = 1231413348.

The previous prime is 1231413277. The next prime is 1231413361. The reversal of 1231413349 is 9433141321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1169161249 + 62252100 = 34193^2 + 7890^2 .

It is a cyclic number.

It is not a de Polignac number, because 1231413349 - 2¹⁵ = 1231380581 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1231413349.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1231413049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615706674 + 615706675.

It is an arithmetic number, because the mean of its divisors is an integer number (615706675).

Almost surely, 2^1231413349 is an apocalyptic number.

It is an amenable number.

1231413349 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231413349 is an equidigital number, since it uses as much as digits as its factorization.

1231413349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 31.

The square root of 1231413349 is about 35091.4996687232. The cubic root of 1231413349 is about 1071.8514975498.

The spelling of 1231413349 in words is "one billion, two hundred thirty-one million, four hundred thirteen thousand, three hundred forty-nine".