10121018394 has 16 divisors (see below), whose sum is σ = 21122125632. Its totient is φ = 3226991328.

The previous prime is 10121018393. The next prime is 10121018429. The reversal of 10121018394 is 49381012101.

It is not an unprimeable number, because it can be changed into a prime (10121018393) 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, 36670219 + ... + 36670494.

It is an arithmetic number, because the mean of its divisors is an integer number (1320132852).

Almost surely, 2^10121018394 is an apocalyptic number.

10121018394 is an abundant number, since it is smaller than the sum of its proper divisors (11001107238).

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

10121018394 is a wasteful number, since it uses less digits than its factorization.

10121018394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73340741.

The product of its (nonzero) digits is 1728, while the sum is 30.

The spelling of 10121018394 in words is "ten billion, one hundred twenty-one million, eighteen thousand, three hundred ninety-four".