1949103121 has 8 divisors (see below), whose sum is σ = 2242497600. Its totient is φ = 1659446448.

The previous prime is 1949103109. The next prime is 1949103157. The reversal of 1949103121 is 1213019491.

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

It is a cyclic number.

It is not a de Polignac number, because 1949103121 - 2⁹ = 1949102609 is a prime.

It is a super-3 number, since 3×1949103121³ (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1949103181) 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, 933331 + ... + 935416.

It is an arithmetic number, because the mean of its divisors is an integer number (280312200).

Almost surely, 2^1949103121 is an apocalyptic number.

It is an amenable number.

1949103121 is a deficient number, since it is larger than the sum of its proper divisors (293394479).

1949103121 is a wasteful number, since it uses less digits than its factorization.

1949103121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1868903.

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 1949103121 is about 44148.6480087443. The cubic root of 1949103121 is about 1249.1414095396.

The spelling of 1949103121 in words is "one billion, nine hundred forty-nine million, one hundred three thousand, one hundred twenty-one".