131220102098 has 4 divisors (see below), whose sum is σ = 196830153150. Its totient is φ = 65610051048.

The previous prime is 131220102053. The next prime is 131220102107. The reversal of 131220102098 is 890201022131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 113146795129 + 18073306969 = 336373^2 + 134437^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 131220102098.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32805025523 + ... + 32805025526.

Almost surely, 2^131220102098 is an apocalyptic number.

131220102098 is a deficient number, since it is larger than the sum of its proper divisors (65610051052).

131220102098 is an equidigital number, since it uses as much as digits as its factorization.

131220102098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65610051051.

The product of its (nonzero) digits is 1728, while the sum is 29.

The spelling of 131220102098 in words is "one hundred thirty-one billion, two hundred twenty million, one hundred two thousand, ninety-eight".