201073551234 has 32 divisors (see below), whose sum is σ = 423722777280. Its totient is φ = 63435405312.

The previous prime is 201073551233. The next prime is 201073551277. The reversal of 201073551234 is 432155370102.

It is a junction number, because it is equal to n+sod(n) for n = 201073551195 and 201073551204.

It is not an unprimeable number, because it can be changed into a prime (201073551233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 735967 + ... + 971490.

It is an arithmetic number, because the mean of its divisors is an integer number (13241336790).

Almost surely, 2^201073551234 is an apocalyptic number.

201073551234 is an abundant number, since it is smaller than the sum of its proper divisors (222649226046).

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

201073551234 is a wasteful number, since it uses less digits than its factorization.

201073551234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1708514.

The product of its (nonzero) digits is 25200, while the sum is 33.

The spelling of 201073551234 in words is "two hundred one billion, seventy-three million, five hundred fifty-one thousand, two hundred thirty-four".