10231012140 has 48 divisors (see below), whose sum is σ = 28657984992. Its totient is φ = 2727207936.

The previous prime is 10231012081. The next prime is 10231012147. The reversal of 10231012140 is 4121013201.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (10231012147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128772 + ... + 192468.

It is an arithmetic number, because the mean of its divisors is an integer number (597041354).

Almost surely, 2^10231012140 is an apocalyptic number.

10231012140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10231012140 is an abundant number, since it is smaller than the sum of its proper divisors (18426972852).

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

10231012140 is a wasteful number, since it uses less digits than its factorization.

10231012140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66386 (or 66384 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 10231012140 its reverse (4121013201), we get a palindrome (14352025341).

The spelling of 10231012140 in words is "ten billion, two hundred thirty-one million, twelve thousand, one hundred forty".