2351104663261 has 4 divisors (see below), whose sum is σ = 2351108354752. Its totient is φ = 2351100971772.

The previous prime is 2351104663189. The next prime is 2351104663267. The reversal of 2351104663261 is 1623664011532.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2351104663261 - 2³⁷ = 2213665709789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2351104663267) 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, 618315 + ... + 2254888.

It is an arithmetic number, because the mean of its divisors is an integer number (587777088688).

Almost surely, 2^{2351104663261} is an apocalyptic number.

It is an amenable number.

2351104663261 is a deficient number, since it is larger than the sum of its proper divisors (3691491).

2351104663261 is an equidigital number, since it uses as much as digits as its factorization.

2351104663261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3691490.

The product of its (nonzero) digits is 155520, while the sum is 40.

Adding to 2351104663261 its reverse (1623664011532), we get a palindrome (3974768674793).

The spelling of 2351104663261 in words is "two trillion, three hundred fifty-one billion, one hundred four million, six hundred sixty-three thousand, two hundred sixty-one".