20120945294 has 4 divisors (see below), whose sum is σ = 30181417944. Its totient is φ = 10060472646.

The previous prime is 20120945279. The next prime is 20120945297. The reversal of 20120945294 is 49254902102.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20120945297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5030236322 + ... + 5030236325.

It is an arithmetic number, because the mean of its divisors is an integer number (7545354486).

Almost surely, 2^20120945294 is an apocalyptic number.

20120945294 is a deficient number, since it is larger than the sum of its proper divisors (10060472650).

20120945294 is a wasteful number, since it uses less digits than its factorization.

20120945294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10060472649.

The product of its (nonzero) digits is 51840, while the sum is 38.

The spelling of 20120945294 in words is "twenty billion, one hundred twenty million, nine hundred forty-five thousand, two hundred ninety-four".