201001210320 has 40 divisors (see below), whose sum is σ = 623103752736. Its totient is φ = 53600322688.

The previous prime is 201001210313. The next prime is 201001210327. The reversal of 201001210320 is 23012100102.

It is an interprime number because it is at equal distance from previous prime (201001210313) and next prime (201001210327).

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

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 201001210296 and 201001210305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201001210327) 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, 418752282 + ... + 418752761.

Almost surely, 2^201001210320 is an apocalyptic number.

201001210320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201001210320 is an abundant number, since it is smaller than the sum of its proper divisors (422102542416).

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

201001210320 is a wasteful number, since it uses less digits than its factorization.

201001210320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837505059 (or 837505053 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 201001210320 its reverse (23012100102), we get a palindrome (224013310422).

The spelling of 201001210320 in words is "two hundred one billion, one million, two hundred ten thousand, three hundred twenty".