120101013 has 12 divisors (see below), whose sum is σ = 177710988. Its totient is φ = 78114240.

The previous prime is 120101011. The next prime is 120101053. The reversal of 120101013 is 310101021.

It can be written as a sum of positive squares in 2 ways, for example, as 49238289 + 70862724 = 7017^2 + 8418^2 .

It is not a de Polignac number, because 120101013 - 2¹ = 120101011 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 120100986 and 120101004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120101011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 162370 + ... + 163107.

It is an arithmetic number, because the mean of its divisors is an integer number (14809249).

Almost surely, 2^120101013 is an apocalyptic number.

It is an amenable number.

120101013 is a deficient number, since it is larger than the sum of its proper divisors (57609975).

120101013 is a wasteful number, since it uses less digits than its factorization.

120101013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325524 (or 325521 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 120101013 is about 10959.0607717997. The cubic root of 120101013 is about 493.3807757617.

Adding to 120101013 its reverse (310101021), we get a palindrome (430202034).

The spelling of 120101013 in words is "one hundred twenty million, one hundred one thousand, thirteen".