120032121001 has 4 divisors (see below), whose sum is σ = 129265361092. Its totient is φ = 110798880912.

The previous prime is 120032120981. The next prime is 120032121019. The reversal of 120032121001 is 100121230021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 100121230021 = 7717 ⋅12974113.

It can be written as a sum of positive squares in 2 ways, for example, as 24242490000 + 95789631001 = 155700^2 + 309499^2 .

It is a cyclic number.

It is not a de Polignac number, because 120032121001 - 2¹⁷ = 120031989929 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 9233240077 = 120032121001 / (1 + 2 + 0 + 0 + 3 + 2 + 1 + 2 + 1 + 0 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120032121031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4616620026 + ... + 4616620051.

It is an arithmetic number, because the mean of its divisors is an integer number (32316340273).

Almost surely, 2^120032121001 is an apocalyptic number.

It is an amenable number.

120032121001 is a deficient number, since it is larger than the sum of its proper divisors (9233240091).

120032121001 is an equidigital number, since it uses as much as digits as its factorization.

120032121001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9233240090.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 120032121001 its reverse (100121230021), we get a palindrome (220153351022).

The spelling of 120032121001 in words is "one hundred twenty billion, thirty-two million, one hundred twenty-one thousand, one".