10121201983 has 4 divisors (see below), whose sum is σ = 10177120408. Its totient is φ = 10065283560.

The previous prime is 10121201971. The next prime is 10121202053. The reversal of 10121201983 is 38910212101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38910212101 = 821 ⋅47393681.

It is a cyclic number.

It is not a de Polignac number, because 10121201983 - 2¹³ = 10121193791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121201933) 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, 27958941 + ... + 27959302.

It is an arithmetic number, because the mean of its divisors is an integer number (2544280102).

Almost surely, 2^10121201983 is an apocalyptic number.

10121201983 is a deficient number, since it is larger than the sum of its proper divisors (55918425).

10121201983 is an equidigital number, since it uses as much as digits as its factorization.

10121201983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55918424.

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

The spelling of 10121201983 in words is "ten billion, one hundred twenty-one million, two hundred one thousand, nine hundred eighty-three".