20040142031 has 8 divisors (see below), whose sum is σ = 24664790304. Its totient is φ = 15855936480.

The previous prime is 20040142013. The next prime is 20040142103. The reversal of 20040142031 is 13024104002.

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 20040142031 - 2⁶ = 20040141967 is a prime.

It is a super-2 number, since 2×20040142031² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20040102031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110110580 + ... + 110110761.

It is an arithmetic number, because the mean of its divisors is an integer number (3083098788).

Almost surely, 2^20040142031 is an apocalyptic number.

20040142031 is a deficient number, since it is larger than the sum of its proper divisors (4624648273).

20040142031 is a wasteful number, since it uses less digits than its factorization.

20040142031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220221361.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 20040142031 its reverse (13024104002), we get a palindrome (33064246033).

The spelling of 20040142031 in words is "twenty billion, forty million, one hundred forty-two thousand, thirty-one".