32403211421 has 12 divisors (see below), whose sum is σ = 38039350140. Its totient is φ = 27519367680.

The previous prime is 32403211409. The next prime is 32403211433. The reversal of 32403211421 is 12411230423.

It is an interprime number because it is at equal distance from previous prime (32403211409) and next prime (32403211433).

It can be written as a sum of positive squares in 2 ways, for example, as 21604884196 + 10798327225 = 146986^2 + 103915^2 .

It is not a de Polignac number, because 32403211421 - 2³⁰ = 31329469597 is a prime.

It is a super-2 number, since 2×32403211421² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32403211481) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3028100 + ... + 3038781.

It is an arithmetic number, because the mean of its divisors is an integer number (3169945845).

Almost surely, 2^32403211421 is an apocalyptic number.

It is an amenable number.

32403211421 is a deficient number, since it is larger than the sum of its proper divisors (5636138719).

32403211421 is a wasteful number, since it uses less digits than its factorization.

32403211421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6067004 (or 6066997 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 32403211421 its reverse (12411230423), we get a palindrome (44814441844).

The spelling of 32403211421 in words is "thirty-two billion, four hundred three million, two hundred eleven thousand, four hundred twenty-one".