102021133011 has 72 divisors (see below), whose sum is σ = 161396202240. Its totient is φ = 57150753408.

The previous prime is 102021133009. The next prime is 102021133033. The reversal of 102021133011 is 110331120201.

It is a happy number.

It is not a de Polignac number, because 102021133011 - 2¹ = 102021133009 is a prime.

It is a super-2 number, since 2×102021133011² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102021135011) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 284181250 + ... + 284181608.

It is an arithmetic number, because the mean of its divisors is an integer number (2241613920).

Almost surely, 2^102021133011 is an apocalyptic number.

102021133011 is a deficient number, since it is larger than the sum of its proper divisors (59375069229).

102021133011 is a wasteful number, since it uses less digits than its factorization.

102021133011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753 (or 609 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 102021133011 its reverse (110331120201), we get a palindrome (212352253212).

The spelling of 102021133011 in words is "one hundred two billion, twenty-one million, one hundred thirty-three thousand, eleven".