103020512461 has 4 divisors (see below), whose sum is σ = 103194240732. Its totient is φ = 102846784192.

The previous prime is 103020512429. The next prime is 103020512471. The reversal of 103020512461 is 164215020301.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 49477329225 + 53543183236 = 222435^2 + 231394^2 .

It is a cyclic number.

It is not a de Polignac number, because 103020512461 - 2⁵ = 103020512429 is a prime.

It is a super-2 number, since 2×103020512461² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103020512471) 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, 86863246 + ... + 86864431.

It is an arithmetic number, because the mean of its divisors is an integer number (25798560183).

Almost surely, 2^103020512461 is an apocalyptic number.

It is an amenable number.

103020512461 is a deficient number, since it is larger than the sum of its proper divisors (173728271).

103020512461 is an equidigital number, since it uses as much as digits as its factorization.

103020512461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173728270.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 103020512461 its reverse (164215020301), we get a palindrome (267235532762).

The spelling of 103020512461 in words is "one hundred three billion, twenty million, five hundred twelve thousand, four hundred sixty-one".