21151363102 has 8 divisors (see below), whose sum is σ = 31729723056. Its totient is φ = 10574788752.

The previous prime is 21151363091. The next prime is 21151363151. The reversal of 21151363102 is 20136315112.

It is a happy number.

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

It is a super-2 number, since 2×21151363102² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 416383 + ... + 464410.

It is an arithmetic number, because the mean of its divisors is an integer number (3966215382).

Almost surely, 2^21151363102 is an apocalyptic number.

21151363102 is a deficient number, since it is larger than the sum of its proper divisors (10578359954).

21151363102 is a wasteful number, since it uses less digits than its factorization.

21151363102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 892802.

The product of its (nonzero) digits is 1080, while the sum is 25.

Adding to 21151363102 its reverse (20136315112), we get a palindrome (41287678214).

The spelling of 21151363102 in words is "twenty-one billion, one hundred fifty-one million, three hundred sixty-three thousand, one hundred two".