30231120140 has 24 divisors (see below), whose sum is σ = 68368841520. Its totient is φ = 11162259648.

The previous prime is 30231120133. The next prime is 30231120149. The reversal of 30231120140 is 4102113203.

It is a super-2 number, since 2×30231120140² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30231120149) 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, 58136510 + ... + 58137029.

It is an arithmetic number, because the mean of its divisors is an integer number (2848701730).

Almost surely, 2^30231120140 is an apocalyptic number.

It is an amenable number.

30231120140 is an abundant number, since it is smaller than the sum of its proper divisors (38137721380).

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

30231120140 is a wasteful number, since it uses less digits than its factorization.

30231120140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116273561 (or 116273559 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 30231120140 its reverse (4102113203), we get a palindrome (34333233343).

The spelling of 30231120140 in words is "thirty billion, two hundred thirty-one million, one hundred twenty thousand, one hundred forty".