10310212981 has 2 divisors, whose sum is σ = 10310212982. Its totient is φ = 10310212980.

The previous prime is 10310212961. The next prime is 10310213009. The reversal of 10310212981 is 18921201301.

It is an a-pointer prime, because the next prime (10310213009) can be obtained adding 10310212981 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5534020881 + 4776192100 = 74391^2 + 69110^2 .

It is a cyclic number.

It is not a de Polignac number, because 10310212981 - 2¹³ = 10310204789 is a prime.

It is a super-2 number, since 2×10310212981² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10310212961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5155106490 + 5155106491.

It is an arithmetic number, because the mean of its divisors is an integer number (5155106491).

Almost surely, 2^10310212981 is an apocalyptic number.

It is an amenable number.

10310212981 is a deficient number, since it is larger than the sum of its proper divisors (1).

10310212981 is an equidigital number, since it uses as much as digits as its factorization.

10310212981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 28.

The spelling of 10310212981 in words is "ten billion, three hundred ten million, two hundred twelve thousand, nine hundred eighty-one".