31542143355 has 12 divisors (see below), whose sum is σ = 54673048560. Its totient is φ = 16822476432.

The previous prime is 31542143299. The next prime is 31542143377. The reversal of 31542143355 is 55334124513.

31542143355 is a `hidden beast` number, since 3 + 154 + 21 + 433 + 55 = 666.

It is not a de Polignac number, because 31542143355 - 2¹¹ = 31542141307 is a prime.

It is a super-3 number, since 3×31542143355³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 350468215 + ... + 350468304.

It is an arithmetic number, because the mean of its divisors is an integer number (4556087380).

Almost surely, 2^31542143355 is an apocalyptic number.

31542143355 is a deficient number, since it is larger than the sum of its proper divisors (23130905205).

31542143355 is a wasteful number, since it uses less digits than its factorization.

31542143355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700936530 (or 700936527 counting only the distinct ones).

The product of its digits is 108000, while the sum is 36.

Adding to 31542143355 its reverse (55334124513), we get a palindrome (86876267868).

The spelling of 31542143355 in words is "thirty-one billion, five hundred forty-two million, one hundred forty-three thousand, three hundred fifty-five".