203053011 has 12 divisors (see below), whose sum is σ = 314939592. Its totient is φ = 116030208.

The previous prime is 203052979. The next prime is 203053027. The reversal of 203053011 is 110350302.

It is a happy number.

It is not a de Polignac number, because 203053011 - 2⁵ = 203052979 is a prime.

It is a super-2 number, since 2×203053011² = 82461050552332242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (203053031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 690510 + ... + 690803.

It is an arithmetic number, because the mean of its divisors is an integer number (26244966).

Almost surely, 2^203053011 is an apocalyptic number.

203053011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

203053011 is a deficient number, since it is larger than the sum of its proper divisors (111886581).

203053011 is a wasteful number, since it uses less digits than its factorization.

203053011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1381330 (or 1381323 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 203053011 is about 14249.6670487419. The cubic root of 203053011 is about 587.7642195266.

The spelling of 203053011 in words is "two hundred three million, fifty-three thousand, eleven".