31542040401 has 8 divisors (see below), whose sum is σ = 42107158080. Its totient is φ = 21002474832.

The previous prime is 31542040381. The next prime is 31542040457. The reversal of 31542040401 is 10404024513.

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

It is not a de Polignac number, because 31542040401 - 2²¹ = 31539943249 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31542040471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6385146 + ... + 6390083.

It is an arithmetic number, because the mean of its divisors is an integer number (5263394760).

Almost surely, 2^31542040401 is an apocalyptic number.

It is an amenable number.

31542040401 is a deficient number, since it is larger than the sum of its proper divisors (10565117679).

31542040401 is a wasteful number, since it uses less digits than its factorization.

31542040401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12776055.

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 31542040401 its reverse (10404024513), we get a palindrome (41946064914).

The spelling of 31542040401 in words is "thirty-one billion, five hundred forty-two million, forty thousand, four hundred one".