1912420101 has 8 divisors (see below), whose sum is σ = 2632148224. Its totient is φ = 1233819360.

The previous prime is 1912420099. The next prime is 1912420183. The reversal of 1912420101 is 1010242191.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1912420101 - 2¹ = 1912420099 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1912420001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10281736 + ... + 10281921.

It is an arithmetic number, because the mean of its divisors is an integer number (329018528).

Almost surely, 2^1912420101 is an apocalyptic number.

It is an amenable number.

1912420101 is a deficient number, since it is larger than the sum of its proper divisors (719728123).

1912420101 is a wasteful number, since it uses less digits than its factorization.

1912420101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20563691.

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 1912420101 is about 43731.2256974350. The cubic root of 1912420101 is about 1241.2552544124.

Adding to 1912420101 its reverse (1010242191), we get a palindrome (2922662292).

The spelling of 1912420101 in words is "one billion, nine hundred twelve million, four hundred twenty thousand, one hundred one".