2251420523311 has 8 divisors (see below), whose sum is σ = 2331693402480. Its totient is φ = 2171323490112.

The previous prime is 2251420523281. The next prime is 2251420523419. The reversal of 2251420523311 is 1133250241522.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2251420523311 - 2²⁵ = 2251386968879 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 (2251420523111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43935430 + ... + 43986643.

It is an arithmetic number, because the mean of its divisors is an integer number (291461675310).

Almost surely, 2^{2251420523311} is an apocalyptic number.

2251420523311 is a deficient number, since it is larger than the sum of its proper divisors (80272879169).

2251420523311 is an equidigital number, since it uses as much as digits as its factorization.

2251420523311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87922985.

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 2251420523311 its reverse (1133250241522), we get a palindrome (3384670764833).

The spelling of 2251420523311 in words is "two trillion, two hundred fifty-one billion, four hundred twenty million, five hundred twenty-three thousand, three hundred eleven".