201123702 has 128 divisors (see below), whose sum is σ = 537062400. Its totient is φ = 55116288.

The previous prime is 201123701. The next prime is 201123731. The reversal of 201123702 is 207321102.

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 (201123701) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 226303 + ... + 227189.

It is an arithmetic number, because the mean of its divisors is an integer number (4195800).

Almost surely, 2^201123702 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201123702, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268531200).

201123702 is an abundant number, since it is smaller than the sum of its proper divisors (335938698).

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

201123702 is a wasteful number, since it uses less digits than its factorization.

201123702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947 (or 941 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 201123702 is about 14181.8088409060. The cubic root of 201123702 is about 585.8967443397.

Adding to 201123702 its reverse (207321102), we get a palindrome (408444804).

The spelling of 201123702 in words is "two hundred one million, one hundred twenty-three thousand, seven hundred two".