126003121033 has 4 divisors (see below), whose sum is σ = 126413554960. Its totient is φ = 125592687108.

The previous prime is 126003121031. The next prime is 126003121073. The reversal of 126003121033 is 330121300621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 126003121033 - 2¹ = 126003121031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 126003120995 and 126003121013.

It is not an unprimeable number, because it can be changed into a prime (126003121031) 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, 205216503 + ... + 205217116.

It is an arithmetic number, because the mean of its divisors is an integer number (31603388740).

Almost surely, 2^126003121033 is an apocalyptic number.

It is an amenable number.

126003121033 is a deficient number, since it is larger than the sum of its proper divisors (410433927).

126003121033 is an equidigital number, since it uses as much as digits as its factorization.

126003121033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410433926.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 126003121033 its reverse (330121300621), we get a palindrome (456124421654).

The spelling of 126003121033 in words is "one hundred twenty-six billion, three million, one hundred twenty-one thousand, thirty-three".