20150402983 has 2 divisors, whose sum is σ = 20150402984. Its totient is φ = 20150402982.

The previous prime is 20150402981. The next prime is 20150403023. The reversal of 20150402983 is 38920405102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20150402983 - 2¹ = 20150402981 is a prime.

Together with 20150402981, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20150402981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10075201491 + 10075201492.

It is an arithmetic number, because the mean of its divisors is an integer number (10075201492).

Almost surely, 2^20150402983 is an apocalyptic number.

20150402983 is a deficient number, since it is larger than the sum of its proper divisors (1).

20150402983 is an equidigital number, since it uses as much as digits as its factorization.

20150402983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 34.

The spelling of 20150402983 in words is "twenty billion, one hundred fifty million, four hundred two thousand, nine hundred eighty-three".