33124144344421 has 12 divisors (see below), whose sum is σ = 35921137454532. Its totient is φ = 30530968980096.

The previous prime is 33124144344373. The next prime is 33124144344439. The reversal of 33124144344421 is 12444344142133.

It can be written as a sum of positive squares in 6 ways, for example, as 1915217959396 + 31208926385025 = 1383914^2 + 5586495^2 .

It is not a de Polignac number, because 33124144344421 - 2⁹ = 33124144343909 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 (33124144344491) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 144642496 + ... + 144871321.

It is an arithmetic number, because the mean of its divisors is an integer number (2993428121211).

Almost surely, 2^{33124144344421} is an apocalyptic number.

It is an amenable number.

33124144344421 is a deficient number, since it is larger than the sum of its proper divisors (2796993110111).

33124144344421 is a wasteful number, since it uses less digits than its factorization.

33124144344421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289514520 (or 289514507 counting only the distinct ones).

The product of its digits is 442368, while the sum is 40.

Adding to 33124144344421 its reverse (12444344142133), we get a palindrome (45568488486554).

The spelling of 33124144344421 in words is "thirty-three trillion, one hundred twenty-four billion, one hundred forty-four million, three hundred forty-four thousand, four hundred twenty-one".