10203032091 has 64 divisors (see below), whose sum is σ = 16586240000. Its totient is φ = 5449514112.

The previous prime is 10203032029. The next prime is 10203032123. The reversal of 10203032091 is 19023030201.

It is a happy number.

It is not a de Polignac number, because 10203032091 - 2⁷ = 10203031963 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (10203072091) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16482780 + ... + 16483398.

It is an arithmetic number, because the mean of its divisors is an integer number (259160000).

Almost surely, 2^10203032091 is an apocalyptic number.

10203032091 is a deficient number, since it is larger than the sum of its proper divisors (6383207909).

10203032091 is a wasteful number, since it uses less digits than its factorization.

10203032091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 10203032091 its reverse (19023030201), we get a palindrome (29226062292).

The spelling of 10203032091 in words is "ten billion, two hundred three million, thirty-two thousand, ninety-one".