31261023053 has 8 divisors (see below), whose sum is σ = 35646053688. Its totient is φ = 27158897664.

The previous prime is 31261023041. The next prime is 31261023061. The reversal of 31261023053 is 35032016213.

It can be written as a sum of positive squares in 4 ways, for example, as 10819744324 + 20441278729 = 104018^2 + 142973^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31261023053 - 2²⁸ = 30992587597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31261023553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70726076 + ... + 70726517.

It is an arithmetic number, because the mean of its divisors is an integer number (4455756711).

Almost surely, 2^31261023053 is an apocalyptic number.

It is an amenable number.

31261023053 is a deficient number, since it is larger than the sum of its proper divisors (4385030635).

31261023053 is a wasteful number, since it uses less digits than its factorization.

31261023053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141452623.

The product of its (nonzero) digits is 3240, while the sum is 26.

Adding to 31261023053 its reverse (35032016213), we get a palindrome (66293039266).

The spelling of 31261023053 in words is "thirty-one billion, two hundred sixty-one million, twenty-three thousand, fifty-three".