307213073430 has 64 divisors (see below), whose sum is σ = 741161836800. Its totient is φ = 81496033920.

The previous prime is 307213073423. The next prime is 307213073507. The reversal of 307213073430 is 34370312703.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 307213073391 and 307213073400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14605461 + ... + 14626479.

It is an arithmetic number, because the mean of its divisors is an integer number (11580653700).

Almost surely, 2^307213073430 is an apocalyptic number.

307213073430 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

307213073430 is an abundant number, since it is smaller than the sum of its proper divisors (433948763370).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

307213073430 is a wasteful number, since it uses less digits than its factorization.

307213073430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23549.

The product of its (nonzero) digits is 31752, while the sum is 33.

The spelling of 307213073430 in words is "three hundred seven billion, two hundred thirteen million, seventy-three thousand, four hundred thirty".