20230311332 has 96 divisors (see below), whose sum is σ = 47451156480. Its totient is φ = 7308126720.

The previous prime is 20230311301. The next prime is 20230311377. The reversal of 20230311332 is 23311303202.

It is a super-2 number, since 2×20230311332² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 238268 + ... + 311820.

It is an arithmetic number, because the mean of its divisors is an integer number (494282880).

Almost surely, 2^20230311332 is an apocalyptic number.

20230311332 is a gapful number since it is divisible by the number (22) 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 20230311332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23725578240).

20230311332 is an abundant number, since it is smaller than the sum of its proper divisors (27220845148).

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

20230311332 is a wasteful number, since it uses less digits than its factorization.

20230311332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73641 (or 73639 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 20230311332 its reverse (23311303202), we get a palindrome (43541614534).

The spelling of 20230311332 in words is "twenty billion, two hundred thirty million, three hundred eleven thousand, three hundred thirty-two".