102142612993 has 4 divisors (see below), whose sum is σ = 102922327728. Its totient is φ = 101362898260.

The previous prime is 102142612991. The next prime is 102142612997. The reversal of 102142612993 is 399216241201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 399216241201 = 7517 ⋅53108453.

It is a cyclic number.

It is not a de Polignac number, because 102142612993 - 2¹ = 102142612991 is a prime.

It is a super-2 number, since 2×102142612993² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102142612991) 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, 389857171 + ... + 389857432.

It is an arithmetic number, because the mean of its divisors is an integer number (25730581932).

Almost surely, 2^102142612993 is an apocalyptic number.

It is an amenable number.

102142612993 is a deficient number, since it is larger than the sum of its proper divisors (779714735).

102142612993 is an equidigital number, since it uses as much as digits as its factorization.

102142612993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779714734.

The product of its (nonzero) digits is 46656, while the sum is 40.

The spelling of 102142612993 in words is "one hundred two billion, one hundred forty-two million, six hundred twelve thousand, nine hundred ninety-three".