133431936942 has 48 divisors (see below), whose sum is σ = 274414098672. Its totient is φ = 43252704000.

The previous prime is 133431936931. The next prime is 133431936959. The reversal of 133431936942 is 249639134331.

It is a super-2 number, since 2×133431936942² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 133431936891 and 133431936900.

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, 24253192 + ... + 24258692.

It is an arithmetic number, because the mean of its divisors is an integer number (5716960389).

Almost surely, 2^133431936942 is an apocalyptic number.

133431936942 is an abundant number, since it is smaller than the sum of its proper divisors (140982161730).

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

133431936942 is a wasteful number, since it uses less digits than its factorization.

133431936942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8533 (or 8496 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 48.

The spelling of 133431936942 in words is "one hundred thirty-three billion, four hundred thirty-one million, nine hundred thirty-six thousand, nine hundred forty-two".