201030123132 has 120 divisors (see below), whose sum is σ = 528052162176. Its totient is φ = 66689505792.

The previous prime is 201030123131. The next prime is 201030123163. The reversal of 201030123132 is 231321030102.

It is a super-2 number, since 2×201030123132² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201030123131) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 87517408 + ... + 87519704.

Almost surely, 2^201030123132 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201030123132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264026081088).

201030123132 is an abundant number, since it is smaller than the sum of its proper divisors (327022039044).

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

201030123132 is a wasteful number, since it uses less digits than its factorization.

201030123132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3489 (or 3478 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 201030123132 its reverse (231321030102), we get a palindrome (432351153234).

The spelling of 201030123132 in words is "two hundred one billion, thirty million, one hundred twenty-three thousand, one hundred thirty-two".