31151530234 has 16 divisors (see below), whose sum is σ = 53191546560. Its totient is φ = 13544143360.

The previous prime is 31151530231. The next prime is 31151530273. The reversal of 31151530234 is 43203515113.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (31151530231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30781639 + ... + 30782650.

It is an arithmetic number, because the mean of its divisors is an integer number (3324471660).

Almost surely, 2^31151530234 is an apocalyptic number.

31151530234 is a deficient number, since it is larger than the sum of its proper divisors (22040016326).

31151530234 is a wasteful number, since it uses less digits than its factorization.

31151530234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61564325.

The product of its (nonzero) digits is 5400, while the sum is 28.

The spelling of 31151530234 in words is "thirty-one billion, one hundred fifty-one million, five hundred thirty thousand, two hundred thirty-four".