131022201213011 has 4 divisors (see below), whose sum is σ = 132053872088832. Its totient is φ = 129990530337192.

The previous prime is 131022201212977. The next prime is 131022201213179. The reversal of 131022201213011 is 110312102220131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131022201213011 is a prime.

It is a super-2 number, since 2×131022201213011² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131022201213511) 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, 515835437720 + ... + 515835437973.

It is an arithmetic number, because the mean of its divisors is an integer number (33013468022208).

Almost surely, 2^{131022201213011} is an apocalyptic number.

131022201213011 is a deficient number, since it is larger than the sum of its proper divisors (1031670875821).

131022201213011 is a wasteful number, since it uses less digits than its factorization.

131022201213011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031670875820.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 131022201213011 its reverse (110312102220131), we get a palindrome (241334303433142).

The spelling of 131022201213011 in words is "one hundred thirty-one trillion, twenty-two billion, two hundred one million, two hundred thirteen thousand, eleven".