2031271642 has 8 divisors (see below), whose sum is σ = 3054741300. Its totient is φ = 1013024544.

The previous prime is 2031271631. The next prime is 2031271663. The reversal of 2031271642 is 2461721302.

It can be written as a sum of positive squares in 2 ways, for example, as 1936968121 + 94303521 = 44011^2 + 9711^2 .

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

It is a super-3 number, since 3×2031271642³ (a number of 29 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2031271642.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1304667 + ... + 1306222.

Almost surely, 2^2031271642 is an apocalyptic number.

2031271642 is a deficient number, since it is larger than the sum of its proper divisors (1023469658).

2031271642 is a wasteful number, since it uses less digits than its factorization.

2031271642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2611280.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 2031271642 is about 45069.6310390933. The cubic root of 2031271642 is about 1266.4537525635.

Adding to 2031271642 its reverse (2461721302), we get a palindrome (4492992944).

The spelling of 2031271642 in words is "two billion, thirty-one million, two hundred seventy-one thousand, six hundred forty-two".