102012131206 has 4 divisors (see below), whose sum is σ = 153018196812. Its totient is φ = 51006065602.

The previous prime is 102012131197. The next prime is 102012131231. The reversal of 102012131206 is 602131210201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 602131210201 = 17 ⋅35419482953.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25503032800 + ... + 25503032803.

It is an arithmetic number, because the mean of its divisors is an integer number (38254549203).

Almost surely, 2^102012131206 is an apocalyptic number.

102012131206 is a deficient number, since it is larger than the sum of its proper divisors (51006065606).

102012131206 is an equidigital number, since it uses as much as digits as its factorization.

102012131206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51006065605.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 102012131206 its reverse (602131210201), we get a palindrome (704143341407).

The spelling of 102012131206 in words is "one hundred two billion, twelve million, one hundred thirty-one thousand, two hundred six".