10401323020 has 96 divisors (see below), whose sum is σ = 24040074240. Its totient is φ = 3748899840.

The previous prime is 10401323011. The next prime is 10401323029. The reversal of 10401323020 is 2032310401.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (10401323011) and next prime (10401323029).

It is a junction number, because it is equal to n+sod(n) for n = 10401322985 and 10401323003.

It is not an unprimeable number, because it can be changed into a prime (10401323029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17719167 + ... + 17719753.

It is an arithmetic number, because the mean of its divisors is an integer number (250417440).

Almost surely, 2^10401323020 is an apocalyptic number.

10401323020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10401323020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12020037120).

10401323020 is an abundant number, since it is smaller than the sum of its proper divisors (13638751220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10401323020 is a wasteful number, since it uses less digits than its factorization.

10401323020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1183 (or 1181 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 10401323020 its reverse (2032310401), we get a palindrome (12433633421).

The spelling of 10401323020 in words is "ten billion, four hundred one million, three hundred twenty-three thousand, twenty".