1233152451021 has 16 divisors (see below), whose sum is σ = 1670441485824. Its totient is φ = 809007494064.

The previous prime is 1233152450987. The next prime is 1233152451023. The reversal of 1233152451021 is 1201542513321.

It is a happy number.

It is not a de Polignac number, because 1233152451021 - 2¹⁹ = 1233151926733 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1233152451021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1233152451023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2923011 + ... + 3318176.

It is an arithmetic number, because the mean of its divisors is an integer number (104402592864).

Almost surely, 2^{1233152451021} is an apocalyptic number.

It is an amenable number.

1233152451021 is a deficient number, since it is larger than the sum of its proper divisors (437289034803).

1233152451021 is an equidigital number, since it uses as much as digits as its factorization.

1233152451021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6242240.

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 1233152451021 its reverse (1201542513321), we get a palindrome (2434694964342).

The spelling of 1233152451021 in words is "one trillion, two hundred thirty-three billion, one hundred fifty-two million, four hundred fifty-one thousand, twenty-one".