10293021989 has 2 divisors, whose sum is σ = 10293021990. Its totient is φ = 10293021988.

The previous prime is 10293021967. The next prime is 10293022007. The reversal of 10293021989 is 98912039201.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7714108900 + 2578913089 = 87830^2 + 50783^2 .

It is a cyclic number.

It is not a de Polignac number, because 10293021989 - 2²⁰ = 10291973413 is a prime.

It is a super-2 number, since 2×10293021989² (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 (10293021689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5146510994 + 5146510995.

It is an arithmetic number, because the mean of its divisors is an integer number (5146510995).

Almost surely, 2^10293021989 is an apocalyptic number.

It is an amenable number.

10293021989 is a deficient number, since it is larger than the sum of its proper divisors (1).

10293021989 is an equidigital number, since it uses as much as digits as its factorization.

10293021989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 44.

The spelling of 10293021989 in words is "ten billion, two hundred ninety-three million, twenty-one thousand, nine hundred eighty-nine".