201142023 has 16 divisors (see below), whose sum is σ = 275202816. Its totient is φ = 130599360.

The previous prime is 201142021. The next prime is 201142031. The reversal of 201142023 is 320241102.

It is not a de Polignac number, because 201142023 - 2¹ = 201142021 is a prime.

It is a super-2 number, since 2×201142023² = 80916226833065058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201141993 and 201142011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201142021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100236 + ... + 102222.

It is an arithmetic number, because the mean of its divisors is an integer number (17200176).

Almost surely, 2^201142023 is an apocalyptic number.

201142023 is a deficient number, since it is larger than the sum of its proper divisors (74060793).

201142023 is a wasteful number, since it uses less digits than its factorization.

201142023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2854.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 201142023 is about 14182.4547593144. The cubic root of 201142023 is about 585.9145342010.

Adding to 201142023 its reverse (320241102), we get a palindrome (521383125).

The spelling of 201142023 in words is "two hundred one million, one hundred forty-two thousand, twenty-three".