82240121031 has 16 divisors (see below), whose sum is σ = 112370628864. Its totient is φ = 53484070464.

The previous prime is 82240121027. The next prime is 82240121053. The reversal of 82240121031 is 13012104228.

It is not a de Polignac number, because 82240121031 - 2² = 82240121027 is a prime.

It is a super-2 number, since 2×82240121031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 82240120992 and 82240121010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82240121011) 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, 1965486 + ... + 2006891.

It is an arithmetic number, because the mean of its divisors is an integer number (7023164304).

Almost surely, 2^82240121031 is an apocalyptic number.

82240121031 is a deficient number, since it is larger than the sum of its proper divisors (30130507833).

82240121031 is a wasteful number, since it uses less digits than its factorization.

82240121031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3972550.

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 82240121031 its reverse (13012104228), we get a palindrome (95252225259).

The spelling of 82240121031 in words is "eighty-two billion, two hundred forty million, one hundred twenty-one thousand, thirty-one".