203011111010 has 16 divisors (see below), whose sum is σ = 368048923200. Its totient is φ = 80620239216.

The previous prime is 203011111007. The next prime is 203011111019. The reversal of 203011111010 is 10111110302.

It is a happy number.

203011111010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×203011111010² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 203011110982 and 203011111000.

It is not an unprimeable number, because it can be changed into a prime (203011111019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73024190 + ... + 73026969.

It is an arithmetic number, because the mean of its divisors is an integer number (23003057700).

Almost surely, 2^203011111010 is an apocalyptic number.

203011111010 is a deficient number, since it is larger than the sum of its proper divisors (165037812190).

203011111010 is a wasteful number, since it uses less digits than its factorization.

203011111010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146051305.

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 203011111010 its reverse (10111110302), we get a palindrome (213122221312).

It can be divided in two parts, 20301 and 1111010, that added together give a palindrome (1131311).

The spelling of 203011111010 in words is "two hundred three billion, eleven million, one hundred eleven thousand, ten".