10203231011 has 4 divisors (see below), whose sum is σ = 10209503832. Its totient is φ = 10196958192.

The previous prime is 10203230981. The next prime is 10203231019. The reversal of 10203231011 is 11013230201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10203231011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10203231019) 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, 3133970 + ... + 3137223.

It is an arithmetic number, because the mean of its divisors is an integer number (2552375958).

Almost surely, 2^10203231011 is an apocalyptic number.

10203231011 is a deficient number, since it is larger than the sum of its proper divisors (6272821).

10203231011 is an equidigital number, since it uses as much as digits as its factorization.

10203231011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6272820.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 10203231011 its reverse (11013230201), we get a palindrome (21216461212).

The spelling of 10203231011 in words is "ten billion, two hundred three million, two hundred thirty-one thousand, eleven".