20130201023 has 2 divisors, whose sum is σ = 20130201024. Its totient is φ = 20130201022.

The previous prime is 20130201001. The next prime is 20130201031. The reversal of 20130201023 is 32010203102.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20130201023 - 2³² = 15835233727 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 20130200989 and 20130201007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20130201053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10065100511 + 10065100512.

It is an arithmetic number, because the mean of its divisors is an integer number (10065100512).

Almost surely, 2^20130201023 is an apocalyptic number.

20130201023 is a deficient number, since it is larger than the sum of its proper divisors (1).

20130201023 is an equidigital number, since it uses as much as digits as its factorization.

20130201023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20130201023 its reverse (32010203102), we get a palindrome (52140404125).

The spelling of 20130201023 in words is "twenty billion, one hundred thirty million, two hundred one thousand, twenty-three".