21000131301 has 16 divisors (see below), whose sum is σ = 29223598464. Its totient is φ = 13388626944.

The previous prime is 21000131291. The next prime is 21000131309. The reversal of 21000131301 is 10313100012.

It is not a de Polignac number, because 21000131301 - 2⁶ = 21000131237 is a prime.

It is a super-4 number, since 4×21000131301⁴ (a number of 42 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21000131309) 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, 336765 + ... + 394221.

It is an arithmetic number, because the mean of its divisors is an integer number (1826474904).

Almost surely, 2^21000131301 is an apocalyptic number.

It is an amenable number.

21000131301 is a deficient number, since it is larger than the sum of its proper divisors (8223467163).

21000131301 is a wasteful number, since it uses less digits than its factorization.

21000131301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62780.

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 21000131301 its reverse (10313100012), we get a palindrome (31313231313).

The spelling of 21000131301 in words is "twenty-one billion, one hundred thirty-one thousand, three hundred one".