201143154234 has 16 divisors (see below), whose sum is σ = 438857791200. Its totient is φ = 60952470960.

The previous prime is 201143154227. The next prime is 201143154263. The reversal of 201143154234 is 432451341102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1523811709 + ... + 1523811840.

It is an arithmetic number, because the mean of its divisors is an integer number (27428611950).

Almost surely, 2^201143154234 is an apocalyptic number.

201143154234 is an abundant number, since it is smaller than the sum of its proper divisors (237714636966).

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

201143154234 is a wasteful number, since it uses less digits than its factorization.

201143154234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3047623565.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 201143154234 its reverse (432451341102), we get a palindrome (633594495336).

The spelling of 201143154234 in words is "two hundred one billion, one hundred forty-three million, one hundred fifty-four thousand, two hundred thirty-four".