10120020018 has 32 divisors (see below), whose sum is σ = 20547689472. Its totient is φ = 3322416000.

The previous prime is 10120020013. The next prime is 10120020023. The reversal of 10120020018 is 81002002101.

It is an interprime number because it is at equal distance from previous prime (10120020013) and next prime (10120020023).

It is a junction number, because it is equal to n+sod(n) for n = 10120019979 and 10120020006.

It is not an unprimeable number, because it can be changed into a prime (10120020011) 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, 72030 + ... + 159462.

It is an arithmetic number, because the mean of its divisors is an integer number (642115296).

Almost surely, 2^10120020018 is an apocalyptic number.

10120020018 is an abundant number, since it is smaller than the sum of its proper divisors (10427669454).

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

10120020018 is a wasteful number, since it uses less digits than its factorization.

10120020018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87730.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 10120020018 its reverse (81002002101), we get a palindrome (91122022119).

The spelling of 10120020018 in words is "ten billion, one hundred twenty million, twenty thousand, eighteen".