40142220263213 has 8 divisors (see below), whose sum is σ = 40147299286200. Its totient is φ = 40137141511168.

The previous prime is 40142220263129. The next prime is 40142220263231. The reversal of 40142220263213 is 31236202224104.

It can be written as a sum of positive squares in 4 ways, for example, as 18576255160324 + 21565965102889 = 4310018^2 + 4643917^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 40142220263213 - 2¹² = 40142220259117 is a prime.

It is a super-2 number, since 2×40142220263213² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 40142220263213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40142220263513) 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, 537997253 + ... + 538071861.

It is an arithmetic number, because the mean of its divisors is an integer number (5018412410775).

Almost surely, 2^{40142220263213} is an apocalyptic number.

It is an amenable number.

40142220263213 is a deficient number, since it is larger than the sum of its proper divisors (5079022987).

40142220263213 is a wasteful number, since it uses less digits than its factorization.

40142220263213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135471.

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 40142220263213 its reverse (31236202224104), we get a palindrome (71378422487317).

The spelling of 40142220263213 in words is "forty trillion, one hundred forty-two billion, two hundred twenty million, two hundred sixty-three thousand, two hundred thirteen".