201312223120 has 40 divisors (see below), whose sum is σ = 468094486464. Its totient is φ = 80517393792.

The previous prime is 201312223117. The next prime is 201312223121. The reversal of 201312223120 is 21322213102.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×201312223120² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201312223121) 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, 791487 + ... + 1014433.

Almost surely, 2^201312223120 is an apocalyptic number.

201312223120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201312223120 is an abundant number, since it is smaller than the sum of its proper divisors (266782263344).

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

201312223120 is a wasteful number, since it uses less digits than its factorization.

201312223120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234247 (or 234241 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 201312223120 its reverse (21322213102), we get a palindrome (222634436222).

The spelling of 201312223120 in words is "two hundred one billion, three hundred twelve million, two hundred twenty-three thousand, one hundred twenty".