21031033001330 has 32 divisors (see below), whose sum is σ = 41304082534848. Its totient is φ = 7646392555200.

The previous prime is 21031033001299. The next prime is 21031033001333. The reversal of 21031033001330 is 3310033013012.

It is not an unprimeable number, because it can be changed into a prime (21031033001333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15024557 + ... + 16364576.

It is an arithmetic number, because the mean of its divisors is an integer number (1290752579214).

Almost surely, 2^{21031033001330} is an apocalyptic number.

21031033001330 is a deficient number, since it is larger than the sum of its proper divisors (20273049533518).

21031033001330 is a wasteful number, since it uses less digits than its factorization.

21031033001330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31395242.

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 21031033001330 its reverse (3310033013012), we get a palindrome (24341066014342).

The spelling of 21031033001330 in words is "twenty-one trillion, thirty-one billion, thirty-three million, one thousand, three hundred thirty".