102031901 has 4 divisors (see below), whose sum is σ = 102053952. Its totient is φ = 102009852.

The previous prime is 102031879. The next prime is 102031907. The reversal of 102031901 is 109130201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 102031901 - 2¹⁴ = 102015517 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 102031901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102031907) 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, 1115 + ... + 14328.

It is an arithmetic number, because the mean of its divisors is an integer number (25513488).

Almost surely, 2^102031901 is an apocalyptic number.

It is an amenable number.

102031901 is a deficient number, since it is larger than the sum of its proper divisors (22051).

102031901 is an equidigital number, since it uses as much as digits as its factorization.

102031901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22050.

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 102031901 is about 10101.0841497336. The cubic root of 102031901 is about 467.2815775488.

The spelling of 102031901 in words is "one hundred two million, thirty-one thousand, nine hundred one".