1051550401223 has 4 divisors (see below), whose sum is σ = 1201771887120. Its totient is φ = 901328915328.

The previous prime is 1051550401217. The next prime is 1051550401243. The reversal of 1051550401223 is 3221040551501.

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

It is a cyclic number.

It is not a de Polignac number, because 1051550401223 - 2⁶ = 1051550401159 is a prime.

It is a super-2 number, since 2×1051550401223² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051550401243) 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, 75110742938 + ... + 75110742951.

It is an arithmetic number, because the mean of its divisors is an integer number (300442971780).

Almost surely, 2^{1051550401223} is an apocalyptic number.

1051550401223 is a deficient number, since it is larger than the sum of its proper divisors (150221485897).

1051550401223 is an equidigital number, since it uses as much as digits as its factorization.

1051550401223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150221485896.

The product of its (nonzero) digits is 6000, while the sum is 29.

Adding to 1051550401223 its reverse (3221040551501), we get a palindrome (4272590952724).

The spelling of 1051550401223 in words is "one trillion, fifty-one billion, five hundred fifty million, four hundred one thousand, two hundred twenty-three".