3212401051261 has 2 divisors, whose sum is σ = 3212401051262. Its totient is φ = 3212401051260.

The previous prime is 3212401051243. The next prime is 3212401051339. The reversal of 3212401051261 is 1621501042123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2738134682361 + 474266368900 = 1654731^2 + 688670^2 .

It is a cyclic number.

It is not a de Polignac number, because 3212401051261 - 2¹¹ = 3212401049213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3212401051201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1606200525630 + 1606200525631.

It is an arithmetic number, because the mean of its divisors is an integer number (1606200525631).

Almost surely, 2^{3212401051261} is an apocalyptic number.

It is an amenable number.

3212401051261 is a deficient number, since it is larger than the sum of its proper divisors (1).

3212401051261 is an equidigital number, since it uses as much as digits as its factorization.

3212401051261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 28.

Adding to 3212401051261 its reverse (1621501042123), we get a palindrome (4833902093384).

The spelling of 3212401051261 in words is "three trillion, two hundred twelve billion, four hundred one million, fifty-one thousand, two hundred sixty-one".