5120121402 has 64 divisors (see below), whose sum is σ = 12952120320. Its totient is φ = 1484089200.

The previous prime is 5120121401. The next prime is 5120121431. The reversal of 5120121402 is 2041210215.

5120121402 is a `hidden beast` number, since 512 + 0 + 12 + 140 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (5120121401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 173724 + ... + 201047.

It is an arithmetic number, because the mean of its divisors is an integer number (202376880).

Almost surely, 2^5120121402 is an apocalyptic number.

5120121402 is an abundant number, since it is smaller than the sum of its proper divisors (7831998918).

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

5120121402 is a wasteful number, since it uses less digits than its factorization.

5120121402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374816 (or 374810 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 5120121402 is about 71555.0235972290. The cubic root of 5120121402 is about 1723.5613744533.

Adding to 5120121402 its reverse (2041210215), we get a palindrome (7161331617).

The spelling of 5120121402 in words is "five billion, one hundred twenty million, one hundred twenty-one thousand, four hundred two".