20540150443031 has 8 divisors (see below), whose sum is σ = 21096054158784. Its totient is φ = 19984286964960.

The previous prime is 20540150442967. The next prime is 20540150443091. The reversal of 20540150443031 is 13034405104502.

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 20540150443031 - 2⁶ = 20540150442967 is a prime.

It is a super-2 number, since 2×20540150443031² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20540150443091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9023240 + ... + 11067933.

It is an arithmetic number, because the mean of its divisors is an integer number (2637006769848).

Almost surely, 2^{20540150443031} is an apocalyptic number.

20540150443031 is a deficient number, since it is larger than the sum of its proper divisors (555903715753).

20540150443031 is a wasteful number, since it uses less digits than its factorization.

20540150443031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20118841.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 20540150443031 its reverse (13034405104502), we get a palindrome (33574555547533).

The spelling of 20540150443031 in words is "twenty trillion, five hundred forty billion, one hundred fifty million, four hundred forty-three thousand, thirty-one".