20121033001 has 16 divisors (see below), whose sum is σ = 20571176448. Its totient is φ = 19676160000.

The previous prime is 20121032999. The next prime is 20121033013. The reversal of 20121033001 is 10033012102.

It is a cyclic number.

It is not a de Polignac number, because 20121033001 - 2¹ = 20121032999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20121033701) 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, 5027001 + ... + 5031001.

It is an arithmetic number, because the mean of its divisors is an integer number (1285698528).

Almost surely, 2^20121033001 is an apocalyptic number.

It is an amenable number.

20121033001 is a deficient number, since it is larger than the sum of its proper divisors (450143447).

20121033001 is a wasteful number, since it uses less digits than its factorization.

20121033001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4632.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 20121033001 its reverse (10033012102), we get a palindrome (30154045103).

The spelling of 20121033001 in words is "twenty billion, one hundred twenty-one million, thirty-three thousand, one".