10121018405 has 8 divisors (see below), whose sum is σ = 12316281984. Its totient is φ = 7982774800.

The previous prime is 10121018393. The next prime is 10121018429. The reversal of 10121018405 is 50481012101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10121018405 - 2⁴ = 10121018389 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 14254601 + ... + 14255310.

It is an arithmetic number, because the mean of its divisors is an integer number (1539535248).

Almost surely, 2^10121018405 is an apocalyptic number.

It is an amenable number.

10121018405 is a deficient number, since it is larger than the sum of its proper divisors (2195263579).

10121018405 is an equidigital number, since it uses as much as digits as its factorization.

10121018405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28509987.

The product of its (nonzero) digits is 320, while the sum is 23.

The spelling of 10121018405 in words is "ten billion, one hundred twenty-one million, eighteen thousand, four hundred five".