234211220018 has 4 divisors (see below), whose sum is σ = 351316830030. Its totient is φ = 117105610008.

The previous prime is 234211219997. The next prime is 234211220027. The reversal of 234211220018 is 810022112432.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 216101327689 + 18109892329 = 464867^2 + 134573^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58552805003 + ... + 58552805006.

Almost surely, 2^234211220018 is an apocalyptic number.

234211220018 is a deficient number, since it is larger than the sum of its proper divisors (117105610012).

234211220018 is a wasteful number, since it uses less digits than its factorization.

234211220018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117105610011.

The product of its (nonzero) digits is 1536, while the sum is 26.

The spelling of 234211220018 in words is "two hundred thirty-four billion, two hundred eleven million, two hundred twenty thousand, eighteen".