10102400402 has 8 divisors (see below), whose sum is σ = 15180234300. Its totient is φ = 5042322304.

The previous prime is 10102400393. The next prime is 10102400449. The reversal of 10102400402 is 20400420101.

It can be written as a sum of positive squares in 2 ways, for example, as 10069921801 + 32478601 = 100349^2 + 5699^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4437527 + ... + 4439802.

Almost surely, 2^10102400402 is an apocalyptic number.

10102400402 is a deficient number, since it is larger than the sum of its proper divisors (5077833898).

10102400402 is an equidigital number, since it uses as much as digits as its factorization.

10102400402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8877900.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 10102400402 its reverse (20400420101), we get a palindrome (30502820503).

The spelling of 10102400402 in words is "ten billion, one hundred two million, four hundred thousand, four hundred two".