1023312021 has 8 divisors (see below), whose sum is σ = 1423738560. Its totient is φ = 652546752.

The previous prime is 1023312019. The next prime is 1023312041. The reversal of 1023312021 is 1202133201.

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

It is not a de Polignac number, because 1023312021 - 2¹ = 1023312019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023312011) 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, 7415236 + ... + 7415373.

It is an arithmetic number, because the mean of its divisors is an integer number (177967320).

Almost surely, 2^1023312021 is an apocalyptic number.

It is an amenable number.

1023312021 is a deficient number, since it is larger than the sum of its proper divisors (400426539).

1023312021 is a wasteful number, since it uses less digits than its factorization.

1023312021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14830635.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1023312021 is about 31989.2485219644. The cubic root of 1023312021 is about 1007.7110603801.

Adding to 1023312021 its reverse (1202133201), we get a palindrome (2225445222).

The spelling of 1023312021 in words is "one billion, twenty-three million, three hundred twelve thousand, twenty-one".