1201032239 has 16 divisors (see below), whose sum is σ = 1372702464. Its totient is φ = 1040160000.

The previous prime is 1201032227. The next prime is 1201032251. The reversal of 1201032239 is 9322301021.

It is an interprime number because it is at equal distance from previous prime (1201032227) and next prime (1201032251).

It is a de Polignac number, because none of the positive numbers 2^k-1201032239 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201032289) 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, 54047 + ... + 72959.

It is an arithmetic number, because the mean of its divisors is an integer number (85793904).

Almost surely, 2^1201032239 is an apocalyptic number.

1201032239 is a deficient number, since it is larger than the sum of its proper divisors (171670225).

1201032239 is a wasteful number, since it uses less digits than its factorization.

1201032239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19198.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 1201032239 is about 34655.9120353223. The cubic root of 1201032239 is about 1062.9631811955.

The spelling of 1201032239 in words is "one billion, two hundred one million, thirty-two thousand, two hundred thirty-nine".