1901011002 has 32 divisors (see below), whose sum is σ = 4248828864. Its totient is φ = 562012800.

The previous prime is 1901010983. The next prime is 1901011003. The reversal of 1901011002 is 2001101091.

It is a super-2 number, since 2×1901011002² = 7227685659450088008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1901011003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 348553 + ... + 353964.

It is an arithmetic number, because the mean of its divisors is an integer number (132775902).

Almost surely, 2^1901011002 is an apocalyptic number.

1901011002 is an abundant number, since it is smaller than the sum of its proper divisors (2347817862).

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

1901011002 is a wasteful number, since it uses less digits than its factorization.

1901011002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702574.

The product of its (nonzero) digits is 18, while the sum is 15.

The square root of 1901011002 is about 43600.5848813981. The cubic root of 1901011002 is about 1238.7819729563.

Adding to 1901011002 its reverse (2001101091), we get a palindrome (3902112093).

The spelling of 1901011002 in words is "one billion, nine hundred one million, eleven thousand, two".