31451434155342 has 48 divisors (see below), whose sum is σ = 68165639633520. Its totient is φ = 10480601805696.

The previous prime is 31451434155331. The next prime is 31451434155389. The reversal of 31451434155342 is 24355143415413.

31451434155342 is a `hidden beast` number, since 3 + 1 + 4 + 5 + 14 + 3 + 41 + 553 + 42 = 666.

It is a super-3 number, since 3×31451434155342³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1333071498 + ... + 1333095090.

It is an arithmetic number, because the mean of its divisors is an integer number (1420117492365).

Almost surely, 2^{31451434155342} is an apocalyptic number.

31451434155342 is an abundant number, since it is smaller than the sum of its proper divisors (36714205478178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31451434155342 is a wasteful number, since it uses less digits than its factorization.

31451434155342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43137 (or 43134 counting only the distinct ones).

The product of its digits is 1728000, while the sum is 45.

The spelling of 31451434155342 in words is "thirty-one trillion, four hundred fifty-one billion, four hundred thirty-four million, one hundred fifty-five thousand, three hundred forty-two".