42355013031 has 24 divisors (see below), whose sum is σ = 61623201536. Its totient is φ = 28032616080.

The previous prime is 42355013011. The next prime is 42355013087. The reversal of 42355013031 is 13031055324.

42355013031 is a `hidden beast` number, since 4 + 2 + 355 + 0 + 1 + 303 + 1 = 666.

It is not a de Polignac number, because 42355013031 - 2⁹ = 42355012519 is a prime.

It is a super-2 number, since 2×42355013031² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42355012986 and 42355013004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42355013011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 659556 + ... + 720918.

Almost surely, 2^42355013031 is an apocalyptic number.

42355013031 is a deficient number, since it is larger than the sum of its proper divisors (19268188505).

42355013031 is a wasteful number, since it uses less digits than its factorization.

42355013031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61923 (or 61920 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

Adding to 42355013031 its reverse (13031055324), we get a palindrome (55386068355).

The spelling of 42355013031 in words is "forty-two billion, three hundred fifty-five million, thirteen thousand, thirty-one".