21003023294 has 8 divisors (see below), whose sum is σ = 34368583608. Its totient is φ = 9546828760.

The previous prime is 21003023291. The next prime is 21003023297. The reversal of 21003023294 is 49232030012.

It is an interprime number because it is at equal distance from previous prime (21003023291) and next prime (21003023297).

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

It is a super-2 number, since 2×21003023294² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21003023291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 477341417 + ... + 477341460.

It is an arithmetic number, because the mean of its divisors is an integer number (4296072951).

Almost surely, 2^21003023294 is an apocalyptic number.

21003023294 is a deficient number, since it is larger than the sum of its proper divisors (13365560314).

21003023294 is a wasteful number, since it uses less digits than its factorization.

21003023294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 954682890.

The product of its (nonzero) digits is 2592, while the sum is 26.

The spelling of 21003023294 in words is "twenty-one billion, three million, twenty-three thousand, two hundred ninety-four".