1000020923 has 8 divisors (see below), whose sum is σ = 1101524736. Its totient is φ = 900282600.

The previous prime is 1000020919. The next prime is 1000020929. The reversal of 1000020923 is 3290200001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1000020923 - 2² = 1000020919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1000020929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 440183 + ... + 442448.

It is an arithmetic number, because the mean of its divisors is an integer number (137690592).

Almost surely, 2^1000020923 is an apocalyptic number.

1000020923 is a deficient number, since it is larger than the sum of its proper divisors (101503813).

1000020923 is a wasteful number, since it uses less digits than its factorization.

1000020923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 882745.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1000020923 is about 31623.1074216308. The cubic root of 1000020923 is about 1000.0069742847.

Adding to 1000020923 its reverse (3290200001), we get a palindrome (4290220924).

The spelling of 1000020923 in words is "one billion, twenty thousand, nine hundred twenty-three".