201051023 has 4 divisors (see below), whose sum is σ = 201080040. Its totient is φ = 201022008.

The previous prime is 201051013. The next prime is 201051031. The reversal of 201051023 is 320150102.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 201051023 - 2¹⁰ = 201049999 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201050989 and 201051007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201051013) 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, 2648 + ... + 20226.

It is an arithmetic number, because the mean of its divisors is an integer number (50270010).

Almost surely, 2^201051023 is an apocalyptic number.

201051023 is a deficient number, since it is larger than the sum of its proper divisors (29017).

201051023 is a wasteful number, since it uses less digits than its factorization.

201051023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29016.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 201051023 is about 14179.2462070450. The cubic root of 201051023 is about 585.8261617093.

The spelling of 201051023 in words is "two hundred one million, fifty-one thousand, twenty-three".