20123004001 has 8 divisors (see below), whose sum is σ = 20707491240. Its totient is φ = 19540654848.

The previous prime is 20123003983. The next prime is 20123004019. The reversal of 20123004001 is 10040032102.

It is an interprime number because it is at equal distance from previous prime (20123003983) and next prime (20123004019).

It can be written as a sum of positive squares in 4 ways, for example, as 8358347776 + 11764656225 = 91424^2 + 108465^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20123004001 - 2⁹ = 20123003489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20123004701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 515416 + ... + 553081.

It is an arithmetic number, because the mean of its divisors is an integer number (2588436405).

Almost surely, 2^20123004001 is an apocalyptic number.

It is an amenable number.

20123004001 is a deficient number, since it is larger than the sum of its proper divisors (584487239).

20123004001 is a wasteful number, since it uses less digits than its factorization.

20123004001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069043.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 20123004001 its reverse (10040032102), we get a palindrome (30163036103).

The spelling of 20123004001 in words is "twenty billion, one hundred twenty-three million, four thousand, one".