120213438781 has 8 divisors (see below), whose sum is σ = 123363608544. Its totient is φ = 117079383120.

The previous prime is 120213438769. The next prime is 120213438791. The reversal of 120213438781 is 187834312021.

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

It is a cyclic number.

It is not a de Polignac number, because 120213438781 - 2⁹ = 120213438269 is a prime.

It is a super-2 number, since 2×120213438781² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120213438721) 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, 4013410 + ... + 4043251.

It is an arithmetic number, because the mean of its divisors is an integer number (15420451068).

Almost surely, 2^120213438781 is an apocalyptic number.

It is an amenable number.

120213438781 is a deficient number, since it is larger than the sum of its proper divisors (3150169763).

120213438781 is an equidigital number, since it uses as much as digits as its factorization.

120213438781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8057051.

The product of its (nonzero) digits is 64512, while the sum is 40.

The spelling of 120213438781 in words is "one hundred twenty billion, two hundred thirteen million, four hundred thirty-eight thousand, seven hundred eighty-one".