31401122234 has 4 divisors (see below), whose sum is σ = 47101683354. Its totient is φ = 15700561116.

The previous prime is 31401122231. The next prime is 31401122239. The reversal of 31401122234 is 43222110413.

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., 28789605625 + 2611516609 = 169675^2 + 51103^2 .

It is not an unprimeable number, because it can be changed into a prime (31401122231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7850280557 + ... + 7850280560.

Almost surely, 2^31401122234 is an apocalyptic number.

31401122234 is a deficient number, since it is larger than the sum of its proper divisors (15700561120).

31401122234 is a wasteful number, since it uses less digits than its factorization.

31401122234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15700561119.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 31401122234 its reverse (43222110413), we get a palindrome (74623232647).

The spelling of 31401122234 in words is "thirty-one billion, four hundred one million, one hundred twenty-two thousand, two hundred thirty-four".