10102400421 has 8 divisors (see below), whose sum is σ = 13486118880. Its totient is φ = 6726807792.

The previous prime is 10102400393. The next prime is 10102400449. The reversal of 10102400421 is 12400420101.

It is an interprime number because it is at equal distance from previous prime (10102400393) and next prime (10102400449).

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

It is not a de Polignac number, because 10102400421 - 2¹⁰ = 10102399397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10102400421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10152400421) 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, 2028555 + ... + 2033528.

It is an arithmetic number, because the mean of its divisors is an integer number (1685764860).

Almost surely, 2^10102400421 is an apocalyptic number.

It is an amenable number.

10102400421 is a deficient number, since it is larger than the sum of its proper divisors (3383718459).

10102400421 is an equidigital number, since it uses as much as digits as its factorization.

10102400421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4062915.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 10102400421 its reverse (12400420101), we get a palindrome (22502820522).

The spelling of 10102400421 in words is "ten billion, one hundred two million, four hundred thousand, four hundred twenty-one".