1002121323 has 8 divisors (see below), whose sum is σ = 1527042048. Its totient is φ = 572640744.

The previous prime is 1002121319. The next prime is 1002121327. The reversal of 1002121323 is 3231212001.

It is an interprime number because it is at equal distance from previous prime (1002121319) and next prime (1002121327).

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

It is not a de Polignac number, because 1002121323 - 2² = 1002121319 is a prime.

It is a super-2 number, since 2×1002121323² = 2008494292022540658, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1002121327) 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, 23860011 + ... + 23860052.

It is an arithmetic number, because the mean of its divisors is an integer number (190880256).

Almost surely, 2^1002121323 is an apocalyptic number.

1002121323 is a deficient number, since it is larger than the sum of its proper divisors (524920725).

1002121323 is an equidigital number, since it uses as much as digits as its factorization.

1002121323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47720073.

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

The square root of 1002121323 is about 31656.2998943338. The cubic root of 1002121323 is about 1000.7066082538.

Adding to 1002121323 its reverse (3231212001), we get a palindrome (4233333324).

The spelling of 1002121323 in words is "one billion, two million, one hundred twenty-one thousand, three hundred twenty-three".