2231402231451 has 4 divisors (see below), whose sum is σ = 2975202975272. Its totient is φ = 1487601487632.

The previous prime is 2231402231441. The next prime is 2231402231477. The reversal of 2231402231451 is 1541322041322.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2231402231451 - 2¹⁹ = 2231401707163 is a prime.

It is a super-3 number, since 3×2231402231451³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2231402231441) 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, 371900371906 + ... + 371900371911.

It is an arithmetic number, because the mean of its divisors is an integer number (743800743818).

Almost surely, 2^{2231402231451} is an apocalyptic number.

2231402231451 is a deficient number, since it is larger than the sum of its proper divisors (743800743821).

2231402231451 is an equidigital number, since it uses as much as digits as its factorization.

2231402231451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743800743820.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 2231402231451 its reverse (1541322041322), we get a palindrome (3772724272773).

The spelling of 2231402231451 in words is "two trillion, two hundred thirty-one billion, four hundred two million, two hundred thirty-one thousand, four hundred fifty-one".