10261212531 has 4 divisors (see below), whose sum is σ = 13681616712. Its totient is φ = 6840808352.

The previous prime is 10261212517. The next prime is 10261212541. The reversal of 10261212531 is 13521216201.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 10261212531 - 2¹⁴ = 10261196147 is a prime.

It is a super-2 number, since 2×10261212531² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10261212541) 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, 1710202086 + ... + 1710202091.

It is an arithmetic number, because the mean of its divisors is an integer number (3420404178).

Almost surely, 2^10261212531 is an apocalyptic number.

10261212531 is a deficient number, since it is larger than the sum of its proper divisors (3420404181).

10261212531 is an equidigital number, since it uses as much as digits as its factorization.

10261212531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3420404180.

The product of its (nonzero) digits is 720, while the sum is 24.

Adding to 10261212531 its reverse (13521216201), we get a palindrome (23782428732).

The spelling of 10261212531 in words is "ten billion, two hundred sixty-one million, two hundred twelve thousand, five hundred thirty-one".