2106502431 has 24 divisors (see below), whose sum is σ = 3249711360. Its totient is φ = 1209471120.

The previous prime is 2106502427. The next prime is 2106502457. The reversal of 2106502431 is 1342056012.

It is not a de Polignac number, because 2106502431 - 2² = 2106502427 is a prime.

It is a super-2 number, since 2×2106502431² = 8874704983617819522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2106502471) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 145815 + ... + 159608.

It is an arithmetic number, because the mean of its divisors is an integer number (135404640).

Almost surely, 2^2106502431 is an apocalyptic number.

2106502431 is a deficient number, since it is larger than the sum of its proper divisors (1143208929).

2106502431 is a wasteful number, since it uses less digits than its factorization.

2106502431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305467 (or 305456 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 2106502431 is about 45896.6494528740. The cubic root of 2106502431 is about 1281.8995297459.

Adding to 2106502431 its reverse (1342056012), we get a palindrome (3448558443).

The spelling of 2106502431 in words is "two billion, one hundred six million, five hundred two thousand, four hundred thirty-one".