10380020402 has 16 divisors (see below), whose sum is σ = 16114685400. Its totient is φ = 5008631040.

The previous prime is 10380020401. The next prime is 10380020411. The reversal of 10380020402 is 20402008301.

It can be written as a sum of positive squares in 4 ways, for example, as 4711586881 + 5668433521 = 68641^2 + 75289^2 .

It is not an unprimeable number, because it can be changed into a prime (10380020401) 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, 81452 + ... + 165512.

Almost surely, 2^10380020402 is an apocalyptic number.

10380020402 is a deficient number, since it is larger than the sum of its proper divisors (5734664998).

10380020402 is a wasteful number, since it uses less digits than its factorization.

10380020402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86221.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 10380020402 its reverse (20402008301), we get a palindrome (30782028703).

The spelling of 10380020402 in words is "ten billion, three hundred eighty million, twenty thousand, four hundred two".