1249202041930 has 8 divisors (see below), whose sum is σ = 2248563675492. Its totient is φ = 499680816768.

The previous prime is 1249202041909. The next prime is 1249202041931. The reversal of 1249202041930 is 391402029421.

It can be written as a sum of positive squares in 2 ways, for example, as 1222335881649 + 26866160281 = 1105593^2 + 163909^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 1249202041930.

It is not an unprimeable number, because it can be changed into a prime (1249202041931) 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, 62460102087 + ... + 62460102106.

Almost surely, 2^{1249202041930} is an apocalyptic number.

1249202041930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1249202041930 is a deficient number, since it is larger than the sum of its proper divisors (999361633562).

1249202041930 is a wasteful number, since it uses less digits than its factorization.

1249202041930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124920204200.

The product of its (nonzero) digits is 31104, while the sum is 37.

The spelling of 1249202041930 in words is "one trillion, two hundred forty-nine billion, two hundred two million, forty-one thousand, nine hundred thirty".