21362562103 has 8 divisors (see below), whose sum is σ = 21589131872. Its totient is φ = 21136121856.

The previous prime is 21362562097. The next prime is 21362562119. The reversal of 21362562103 is 30126526312.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 21362562103 - 2¹⁷ = 21362431031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21362568103) 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, 319351 + ... + 380407.

It is an arithmetic number, because the mean of its divisors is an integer number (2698641484).

Almost surely, 2^21362562103 is an apocalyptic number.

21362562103 is a deficient number, since it is larger than the sum of its proper divisors (226569769).

21362562103 is an equidigital number, since it uses as much as digits as its factorization.

21362562103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64761.

The product of its (nonzero) digits is 12960, while the sum is 31.

The spelling of 21362562103 in words is "twenty-one billion, three hundred sixty-two million, five hundred sixty-two thousand, one hundred three".