10121423240 has 32 divisors (see below), whose sum is σ = 23763343680. Its totient is φ = 3872544192.

The previous prime is 10121423233. The next prime is 10121423261. The reversal of 10121423240 is 4232412101.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5499854 + ... + 5501693.

It is an arithmetic number, because the mean of its divisors is an integer number (742604490).

Almost surely, 2^10121423240 is an apocalyptic number.

10121423240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10121423240 is an abundant number, since it is smaller than the sum of its proper divisors (13641920440).

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

10121423240 is a wasteful number, since it uses less digits than its factorization.

10121423240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11001581 (or 11001577 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 10121423240 its reverse (4232412101), we get a palindrome (14353835341).

The spelling of 10121423240 in words is "ten billion, one hundred twenty-one million, four hundred twenty-three thousand, two hundred forty".