106462513921 has 4 divisors (see below), whose sum is σ = 109059160644. Its totient is φ = 103865867200.

The previous prime is 106462513909. The next prime is 106462513943. The reversal of 106462513921 is 129315264601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 129315264601 = 491 ⋅263371211.

It can be written as a sum of positive squares in 2 ways, for example, as 1603121521 + 104859392400 = 40039^2 + 323820^2 .

It is a cyclic number.

It is not a de Polignac number, because 106462513921 - 2⁷ = 106462513793 is a prime.

It is a super-2 number, since 2×106462513921² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (106462513981) 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, 1298323300 + ... + 1298323381.

It is an arithmetic number, because the mean of its divisors is an integer number (27264790161).

Almost surely, 2^106462513921 is an apocalyptic number.

It is an amenable number.

106462513921 is a deficient number, since it is larger than the sum of its proper divisors (2596646723).

106462513921 is an equidigital number, since it uses as much as digits as its factorization.

106462513921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2596646722.

The product of its (nonzero) digits is 77760, while the sum is 40.

The spelling of 106462513921 in words is "one hundred six billion, four hundred sixty-two million, five hundred thirteen thousand, nine hundred twenty-one".