1200023151 has 8 divisors (see below), whose sum is σ = 1602529584. Its totient is φ = 798766080.

The previous prime is 1200023119. The next prime is 1200023177. The reversal of 1200023151 is 1513200021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1200023151 - 2⁵ = 1200023119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1200023151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200073151) 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, 310096 + ... + 313941.

It is an arithmetic number, because the mean of its divisors is an integer number (200316198).

Almost surely, 2^1200023151 is an apocalyptic number.

1200023151 is a deficient number, since it is larger than the sum of its proper divisors (402506433).

1200023151 is an equidigital number, since it uses as much as digits as its factorization.

1200023151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624681.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 1200023151 is about 34641.3503056679. The cubic root of 1200023151 is about 1062.6654029188.

Adding to 1200023151 its reverse (1513200021), we get a palindrome (2713223172).

The spelling of 1200023151 in words is "one billion, two hundred million, twenty-three thousand, one hundred fifty-one".