341221631 has 2 divisors, whose sum is σ = 341221632. Its totient is φ = 341221630.

The previous prime is 341221577. The next prime is 341221649. The reversal of 341221631 is 136122143.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-341221631 is a prime.

It is a super-2 number, since 2×341221631² = 232864402924600322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 341221597 and 341221606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (341221651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170610815 + 170610816.

It is an arithmetic number, because the mean of its divisors is an integer number (170610816).

Almost surely, 2^341221631 is an apocalyptic number.

341221631 is a deficient number, since it is larger than the sum of its proper divisors (1).

341221631 is an equidigital number, since it uses as much as digits as its factorization.

341221631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 23.

The square root of 341221631 is about 18472.1853336307. The cubic root of 341221631 is about 698.7881283338.

Adding to 341221631 its reverse (136122143), we get a palindrome (477343774).

It can be divided in two parts, 34122 and 1631, that added together give a palindrome (35753).

The spelling of 341221631 in words is "three hundred forty-one million, two hundred twenty-one thousand, six hundred thirty-one".